Acne
Acne is a skin condition which has plugged pores
(blackheads and whiteheads), inflamed pimples
(pustules), and deeper lumps (nodules). Acne occurs
on the face, as well as the neck, chest, back,
shoulders, and upper arms. Although most teenagers
get some form of acne, adults in their 20’s,
30’s, 40’s, or even older, can develop
acne. Often, acne clears up after several years,
even without treatment. Acne can be disfiguring
and upsetting to the patient. Untreated acne can
leave permanent scars; these may be treated by
your dermatologist in the future. To avoid acne
scarring, treating acne is important.
Types
of Acne and How Acne Forms
Acne is not caused by dirt. Testosterone, a hormone
which is present in both males and females, increases
during adolescence (puberty). It stimulates the
sebaceous glands of the skin to enlarge, produce
oil, and plug the pores. Whiteheads (closed comedones),
blackheads (open comedones), and pimples (pustules)
are present in teenage acne.
Early
acne occurs before the first period and is called
prepubertal acne. When
acne is severe and forms deep “pus-filled”
lumps, it is called cystic acne.
This may be more common in males.
Adult
acne develops later in life and may be
related to hormones, childbirth, menopause, or
stopping the pill. Adult women may be treated
at the period and at ovulation when acne is especially
severe, or throughout the entire cycle. Adult
acne is not rosacea, a disease in which blackheads
and whiteheads do not occur.
Cleansing
Acne has nothing to do with not washing your face.
However, it is best to wash your face with a mild
cleanser and warm water daily. Washing too often
or too vigorously may actually make your acne
worse.
Diet
Acne is not caused by foods. However, if certain
foods seem to make your acne worse, try to avoid
them.
Cosmetics
Wear as little cosmetics as possible. Oil-free,
water-based moisturizers and make-up should be
used. Choose products that are “non-comedogenic”
(should not cause whiteheads or blackheads) or
“non-acnegenic” (should not cause
acne). Remove your cosmetics every night with
mild soap or gentle cleanser and water. A flesh-tinted
acne lotion containing acne medications can safely
hide blemishes. Loose powder in combination with
an oil-free foundation is also good for cover-up.
Treatment
Control of acne is an ongoing process. All acne
treatments work by preventing new acne breakouts.
Existing blemishes must heal on their own, and
therefore, improvement takes time. If your acne
has not improved within two to three months, your
treatment may need to be changed. The treatment
your dermatologist recommends will vary according
to the type of acne. Many non-prescription acne
lotions and creams help mild cases of acne. However,
many will also make your skin dry. Follow instructions
carefully.
Topicals
- Your
dermatologist may prescribe topical creams,
gels, or lotions with vitamin A acid-like
drugs to help unblock the pores and reduce bacteria.
These products may cause some drying
and peeling. Your dermatologist will advise
you about correct usage and how to handle side
effects.
- Before
starting any medication, even topical medications,
inform your doctor if you are
pregnant or nursing, or if you are trying to
get pregnant.
Special
Treatments
-
Acne surgery may be used by your dermatologist
to remove blackheads and whiteheads. Do
not pick, scratch, pop, or squeeze pimples yourself.
When the pimples are squeezed, more
redness, swelling, inflammation, and scarring
may result.
-
Microdermabrasion may be used to remove the
upper layers of the skin improving
irregularities in the surface, contour, and
generating new skin.
-
Light chemical peels with glycolic acid help
to unblock the pores, open the blackheads and
whiteheads, and stimulate new skin growth.
-
Injections of corticosteroids may be used for
treating large red bumps (nodules). This may
help them go away quickly.
Oral
- Antibiotics
taken by mouth such as tetracycline, doxycycline,
minocycline, or erythromycin
are often prescribed.
Birth
Control Pills
- Birth
control pills may significantly improve acne,
and may be used specifically for the
treatment of acne. It is also important to know
that oral antibiotics may decrease the
effectiveness of birth control pills. This is
uncommon, but possible, especially if you notice
break-through bleeding. As a precautionary measure
use a second form of birth control.
Treatment
of Acne Scarring
The dermatologist can treat acne scars by a variety
of methods. Skin resurfacing with laser,
dermabrasion, or chemical peels can make noticeable
differences in appearance.
Proper
Care is Necessary
No
matter what special treatments your dermatologist
may use, remember that you must
continue proper skin care. Acne is not curable,
but is controllable; proper treatment helps
you to feel and look better and may prevent scars.
To
learn more about acne and acne treatments see
your dermatologist or login onto www.aad.org.
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Actinic
Keratoses
Actinic Keratoses
(AKs) are also referred to as solar keratoses
and are considered the earliest stage in the development
of skin cancer. They are common lesions of the
epidermis (outermost layer of the skin), and are
caused by long-term exposure to sunlight.
Chronic
sun exposure damages skin cells in AKs called
keratinocytes, the tough-walled cells that make
up 90 percent of the epidermis and give the skin
its texture. Changes in keratinocytes can be seen
when the skin becomes rough, scaly, or mottled,
and develops bumps or small horn-like growths.
Further changes in cell growth can allow AKs to
progress to squamous cell carcinoma, a type of
skin cancer.
What
Actinic Keratoses Look Like
Actinic
Keratoses are found on chronically sun-exposed
skin, most commonly on fair-skinned people. They
are commonly found on the sides of the forehead,
the ears, the scalp of bald men, and the backs
of the hands. The typical AK lesion is a dry,
scaly, and rough skin-colored to reddish-brown
“bump”. AK lesions may range from
the size of a pinhead to larger than a quarter.
Skin-colored AK lesions may be noticed by touch
and feel like sandpaper.
An
Actinic Keratosis can also appear as a patch of
skin on the lower lip that dries and cracks open.
An actinic keratoses at any location may at times
seem to disappear for weeks or months and then
return at the same place. If they are picked off,
they grow back.
Treatment
of Actinic Keratoses
The
basic types of treatment for Actinic Keratoses
are:
-
Cryosurgery – Liquid nitrogen “freezes”
surface skin, which flakes off and is replaced
by new skin.
Skin redness is the main side effect, and a
blister may occur. Cryosurgery is the most commonly
used
treatment.
-
Topical Therapy – A topical anti-cancer
cream or lotion (e.g., 5-fluoruracil, imiquimod,
diclofenac
sodium) is applied to the skin to remove actinic
keratoses lesions. Localized red spots may remain
for
a while at the site of a treated AK. Your physician
may recommend treating a larger region of affected
skin as a preventive measure.
-
Photodynamic Therapy – A natural chemical
is applied to the skin; after a few hours, the
skin is
exposed to “blue” light that activates
the chemical to destroy the Actinic Keratoses.
Localized red
areas develop in treated regions which fade
after several days.
Research
and development of other treatments for Actinic
Keratoses is ongoing. No one therapy works on
all Actinic Keratoses in all individuals.
Prevention
of Actinic Keratoses
Prevention
of AKs should begin early in life. Sun damage
to unprotected skin begins in childhood and puts
the child at risk for Actinic Keratoses and skin
cancer later in life.
However,
it is never too late to initiate prevention of
new Actinic Keratosis lesions in adulthood. The
basics of prevention are:
-
Seek shade during peak sunlight hours (10 a.m.
to 4 p.m.).
-
Wear clothing that covers arms and legs, and
wear a wide-brimmed hat.
-
Use a sunscreen with a sun protection factor
(SPF) of 15 or higher daily, and apply it at
least
20 minutes prior to sun exposure for maximum
sun protection.
-
Select a broad-spectrum sunscreen that provides
both UVA and UVB protection, and reapply
sunscreen every 2 hours when outdoors, even
on cloudy days.
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Eczema
/ Atopic Dermatitis
A
common skin condition, atopic dermatitis is frequently
described as “the itch that rashes”.
Intensely itchy patches form. These patches can
be widespread or limited to a few areas. Scratching
often leads to redness, swelling, cracking, “weeping”
of clear fluid, crusting, and scaling of the skin.
Constant scratching can cause skin damage, infection,
and sleep loss.
Ten
to 20 percent of children and 1 to 3 percent of
adults develop atopic dermatitis, making it the
most common type of eczema. For 60 percent or
more, atopic dermatitis begins during the first
year of life, and at least 80 percent have the
condition before age 5. While rare, atopic dermatitis
can first appear at puberty or later.
Infantile
Eczema
When atopic dermatitis begins during infancy,
it often is called infantile eczema. In infants,
itchy patches tend to develop on the scalp, forehead,
and face, especially on the cheeks. For
some children, the condition completely resolves
by age two. If the condition does not resolve,
the childhood phase of atopic dermatitis begins.
During the childhood phase, itchy patches
usually form on the back of the knee and the inside
of the elbow. When atopic dermatitis
develops in an infant or young child, the child
tends to get better with time.
Eczema
Later in Life
Atopic dermatitis also can be a lifelong condition.
Fortunately, for many it tends to become less
severe with age. During the teenage and young-adult
years, the itchy patches often develop on the
elbows and knees. Other common sites for these
patches are the hands, feet, ankles, wrists, face,
neck, and upper chest. Patches are not limited
to these areas; they can appear anywhere on the
body, including around the eyes and on the eyelids.
In
teen and adults, patches of atopic dermatitis
are typically dry, may look discolored, and also
may be scaly or have thickened skin.
Hand
Eczema
Atopic dermatitis increases the risk of developing
hand eczema. Some people who see their atopic
dermatitis clear during adolescence develop hand
eczema as adults. More than 50 percent of those
who develop atopic dermatitis continue to experience
skin rashes as adults, often in the form of hand
eczema.
Hand
eczema has many causes. Overexposure to irritant
chemical trauma, such as soap and water or other
solvents, and physical trauma such as digging
in the garden with bare hands or handling large
quantities of paper, can cause hand eczema or
make pre-existing hand eczema worse. Persons with
atopic dermatitis have sensitive skin often making
them predisposed to other skin problems.
Without
proper diagnosis and treatment, hand eczema can
become chronic (long lasting), interfering with
everyday activities and on-the-job tasks. Hand
eczema can be stubborn. It may take months for
the patches of red, scaly, and inflamed skin to
heal. For hand eczema to resolve, patients must
continue using the medication as directed, possibly
change their daily hygiene and work habits, keep
appointments with their dermatologist, and not
get discouraged.
To
lessen the risk of developing hand eczema, dermatologists
recommend:
- Protect
hands against harsh soaps, cleansers, and other
chemicals by wearing gloves. If the gloves irritate
your skin, see a dermatologist for recommendations.
-
Use an automatic dishwasher as much as possible.
-
Use lukewarm water and a mild soap when washing
the hands and always apply a dermatologist-recommended
ointment or cream immediately after washing.
-
To keep hands soft and supple, apply the dermatologist-recommended
product frequently throughout the day.
-
When outdoors in cool weather, wear gloves to
prevent dry, chapped skin.
-
Protect your skin in the same way you would
care for a fine silk scarf.
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Hair
Loss
Normal
Hair Growth
About 90 percent of the hair on a person’s
scalp is growing at any one time. The growth phase
lasts between two and six years. Ten percent of
the hair is in a resting phase that lasts two
to three months. At the end of its resting stage,
the hair is shed. When a hair is shed, a new hair
from the same follicle replaces it and the growing
cycle starts again. Scalp hair grows about one-half
inch a month. As people age, their rate of hair
growth slows. Natural blondes typically have more
hair (140,000 hairs) than brunettes (105,000)
or redheads (90,000 hairs). Most hair shedding
is due to the normal hair cycle, and losing 50-100
hairs per day is no cause for alarm. However,
if you are concerned about excessive hair loss
or dramatic thinning, consult your dermatologist.
Causes
of Excessive Hair Loss
Improper
Hair Cosmetic Use / Improper Hair Care –
Many men and women use chemical treatments on
their hair, including dyes, tints, bleaches, straighteners
and permanent waves. These treatments rarely damage
hair if they are done correctly. However, the
hair can become weak and break if any of these
chemicals are used too often. Hair can also break
if the solution is left on too long, if two procedures
are done on the same day, or if bleach is applied
to previously bleached hair. If hair becomes brittle
from chemical treatments, it’s best to stop
until the hair has grown out.
Hairstyles
that pull on the hair, like ponytails and braids,
should not be pulled tightly and should be alternated
with looser hairstyles. The constant pull causes
some hair loss, especially along the sides of
the scalp.
Shampooing,
combing and brushing too often can also damage
hair, causing it to break. Using a cream rinse
or conditioner after shampooing will make it easier
to comb and more manageable. When hair is wet,
it is more fragile, so vigorous rubbing with a
towel, and rough combing and brushing should be
avoided. Don’t follow the old rule of 100
brush strokes a day – that damages hair.
Instead, use wide toothed combs and brushes with
smooth tips.
Hereditary
Thinning or Balding – Hereditary
balding or thinning is the most common cause of
hair loss. The tendency can be inherited from
either the mother’s or father’s side
of the family. Women with this trait develop thinning
hair, but do not become completely bald. The condition
is called androgenetic alopecia and it can start
in the teens, twenties or thirties. There is no
cure, although medical treatments have recently
become available that my help some people. One
treatment involves applying a lotion, minoxidil,
to the scalp twice a day. Another treatment for
men is a daily pill containing finasteride, a
drug that blocks the formation of the active male
hormone in the hair follicle.
When
confronted with thinning hair or baldness, men
and some women consider hair transplantation,
which is a permanent form of hair replacement.
Anyone who has suffered permanent hair loss may
be a candidate for hair transplantation. The procedure
of hair transplantation involves moving some hair
from hair-bearing portions (donor sites) of the
head to bald or thinning portions (recipient sites)
and/or removing bald skin. Because the procedures
involve surgery as well as time and money, they
should not be undertaken lightly. Your dermatologist
will help decide which method or combination of
methods is right for you.
Alopecia
Areata – In this type of hair loss,
hair usually falls out, resulting in totally smooth,
round patches about the size of a coin or larger.
It can, rarely, result in complete loss of scalp
and body hair. This disease may affect children
or adults of any age.
The
cause of alopecia areata is unknown. Apart from
the hair loss, affected persons are generally
in excellent health. In most cases, the hair grows
by itself. Dermatologists can treat many people
with this condition. Treatments include topical
medications, a special kind of light treatment,
or in some cases pills.
Childbirth
– When a woman is pregnant, more
of her hairs will be growing. However, after a
woman delivers her baby, many hairs enter the
resting phase of the hair cycle. Within two to
three months, some women will notice large amounts
of hair coming out in their brushes and combs.
This can last one to six months, but resolves
completely in most cases.
High
Fever, Severe Infection, Severe Flu – Illness
may cause hairs to enter the resting phase. Four
weeks to three months after a high fever, severe
illness or infection, a person may be shocked
to see a lot of hair falling out. This shedding
usually corrects itself.
Thyroid
Disease – Both an over-active thyroid
and an under-active thyroid can cause hair loss.
Your physician can diagnosis thyroid disease with
laboratory tests. Hair loss associated with thyroid
disease can be reversed with proper treatment.
Inadequate
Protein in Diet – Some people who
go on crash diets that are low in protein, or
have severely abnormal eating habits, may develop
protein malnutrition. The body will save protein
by shifting growing hairs into the resting phase.
Massive hair shedding can occur two to three months
later. Hair can then be pulled out by the roots
fairly easily. This condition can be reversed
and prevented by eating the proper amount of protein
and, when dieting, maintaining adequate protein
intake.
Medications
– Some prescription drugs may cause
temporary hair shedding. Examples include some
of the medicines used for the following: gout,
arthritis, depression, heart problems, high blood
pressure, or blood thinner. High doses of vitamin
A may also cause hair shedding.
Cancer
Treatments – Some cancer treatments
will cause hair cells to stop dividing. Hairs
become thin and break off as they exit the scalp.
This occurs one to three weeks after the treatment.
Patients can lose up to 90 percent of their scalp
hair. The hair will regrow after treatment ends.
Patients may want to get wigs before treatment.
Birth
Control Pills – Women who lose
hair while taking birth control pills usually
have an inherited tendency for hair thinning.
If hair thinning occurs, a woman can consult her
gynecologist about switching to another birth
control pill. When a woman stops using oral contraceptives,
she may notice that her hair begins shedding two
to three months later. This may continue for six
months when it usually stops. This is similar
to hair loss after the birth of a child.
Low
Serum Iron – Iron deficiency occasionally
produces hair loss. Some people don’t have
enough iron in their diets or may not fully absorb
iron. Women who have heavy menstrual periods may
develop iron deficiency. Low iron can be detected
by laboratory tests and can be corrected by taking
iron pills.
Mayor
Surgery / Chronic Illness – Anyone
who has a major operation may notice increased
hair shedding within one to three months afterwards.
The condition reverses itself within a few months
but people who have a severe chronic illness may
shed hair indefinitely.
Fungus
Infection (Ringworm) of the Scalp –
Caused by a fungus infection, ringworm (which
has nothing to do with worms) begins with small
patches of scaling that can spread and result
in broken hair, redness, swelling, and even oozing.
This contagious disease is most common in children
and oral medications will cure it.
Hair
Pulling (Trichotillomania) – Children
and sometimes adults will twist or pull their
hair, brows or lashes until they come out. In
children especially, this is often just a bad
habit that gets better when the harmful effects
of that habit are explained. Sometimes hair pulling
can be a coping response to unpleasant stresses
and occasionally is a sign of a serious problem
needing the help of a mental health professional.
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Hives
/ Urticaria
Hives
are pink swellings called “wheals”
that occur in groups on any part of the skin.
Each individual wheal lasts a few hours before
fading away, leaving no trace. New hives may continue
to develop as old areas fade. They can vary in
size from as small as a pencil eraser to as large
as a dinner plate and may join together to form
larger swellings. When hives are forming they
usually are very itchy, but may also burn or sting.
Hives
are produced by blood plasma leaking through tiny
gaps between the cells lining small blood vessels
in the skin. A natural chemical called histamine
is released from cells called “mast cells”
which lie along the blood vessels in the skin.
A number of different things including allergic
reactions, chemicals in foods, or medications
can cause a histamine release. Sometimes it’s
impossible to find out why histamine is being
released and hives are forming.
Hives
are very common – 10-20 percent of the population
will have at least one episode in their lifetime.
Hives usually go away within a few days to a few
weeks. Occasionally, a person will continue to
have hives for many years.
When
hives form around the eyes, lips or genitals,
the tissue may swell excessively. Although frightening
in appearance, the swelling usually goes away
in less than 24 hours. Your dermatologist may
use the term angioedema to describe this type
of swelling. It’s also used to describe
very deep large hives on other areas of the body.
Acute
Urticaria
Hives
are classified according to how long the attacks
last and how frequently they occur. The term acute
urticaria is used for hives lasting less than
six weeks. With this type of hives, the cause
or causes can usually be identified and eliminated.
The most common causes of hives are foods, drugs
or infections. Insect bites and internal disease
may also be responsible. Other causes can be physical
stimuli, including pressure, cold and sunlight.
Foods
The
most common foods that cause hives are nuts, chocolate,
fish, tomatoes, eggs, fresh berries and milk.
Fresh foods cause hives more often than cooked
foods. Food additives and preservatives may also
be responsible.
Hives
may appear within minutes or up to two hours after
eating, depending on where the food is absorbed
in the digestive tract.
Drugs
Almost
any prescription or over-the-counter medication
can cause hives. Some of those drugs include
antibiotics (especially penicillin), pain medications,
sedatives, tranquilizers and diuretics. Antacids,
vitamins, eye and ear drops, laxatives, vaginal
douches, or any other non-prescription item can
be a potential cause of hives. If you have an
attack of hives, it’s important to tell
your doctor about all of the preparations that
you use to assist him/her in finding the cause.
Infections
Many
infections can cause hives. Viral upper respiratory
tract infections are a common cause in children.
Other viruses including hepatitis B may also be
a cause, as well as a number of bacterial and
fungal infections.
Chronic
Urticaria
Bouts
of hives lasting more than six weeks are called
chronic urticaria. The cause of this type of hives
is usually much more difficult to identify than
that of acute urticaria. In studies of patients
with chronic
urticaria, the cause was identified in only a
small percentage of patients. Your doctor will
need to ask numerous questions in an attempt to
find the possible cause.
Since
there are no specific tests to determine the cause
of hives, testing will vary depending on your
medical history and based on a thorough examination
by your dermatologist. Routine blood tests are
of little or no value.
Physical
Urticarias
Certain
people can develop hives from sunlight, cold,
pressure, vibration or exercise. Hives due to
sunlight are called solar urticaria. This is a
rare disorder in which hives come up within minutes
of sun exposure on exposed areas and fade within
one to two hours. Reaction to the cold is more
common. Hives appear when the skin is warmed after
exposure to cold. If the exposure to cold is over
large areas of the body, large amounts of histamine
may be released which can produce wheezing, flushing,
generalized hives and fainting. A simple test
for this type of hives can be done by applying
an ice cube to the skin.
Cholinergic
urticaria is tiny, about 1/8 inch bumps surrounded
by a white or red halo which come on with exercise,
heat or emotion. These bumps itch intensely. Anything
which raises the skin temperature can cause these
tiny hives – sweating, sunlight, hot baths,
blushing or anger.
The
most common of the physical urticarias is called
dermatographism. It affects about 5 percent of
the population. Most people with this condition
are otherwise healthy. Hives form from firmly
stroking or scratching the skin. These hives may
be very itchy. This condition can also occur along
with other forms of urticaria. If it is present
along with hives, finding and eliminating the
cause usually clears the dermatographism. Otherwise,
it may persist for months or even years.
Treatment
The
best treatment for hives is to find the cause
and then eliminate it. Unfortunately, this is
not always an easy task. While investigating the
cause of hives, or when a cause cannot be found,
antihistamines are usually prescribed by your
dermatologist to provide some relief. Antihistamines
work best if taken on a regular schedule to prevent
hives from forming. No one antihistamine works
best for everyone, so your doctor may need to
try more than one or different combinations to
find what works best for you.
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Moles
Everyone
has moles, sometimes 40 or more. Most people think
of a mole as a dark brown spot, but moles have
a wide range of appearances.
Moles
can appear anywhere on the skin. They are usually
brown in color but can be skin colored and various
sizes and shapes. The brown color is caused by
melanocytes, special cells that produce the pigment
melanin.
Moles
probably are determined before a person is born.
Most appear during the first 20 years of life,
although some may not appear until later. Sun
exposure increases the number of moles, and they
may darken. During the teen years and pregnancy,
moles also get darker and larger and new ones
may appear.
Each
mole has its own growth pattern. The typical life
cycle of the common mole takes about 50 years.
At first, moles are flat and tan like a freckle,
or they can be pink, brown, or black in color.
Over time, they usually enlarge and some develop
hairs. As the years pass, moles can change slowly,
becoming more raised and lighter in color. Some
will not change at all. Some moles will slowly
disappear, seeming to fade away. Others will become
raised far from the skin.
Different
Types of Moles
Recent
studies have shown that certain types of moles
have a higher-than-average risk of becoming cancerous.
They may develop into a form of skin cancer known
as malignant melanoma. Sunburns may increase the
risk of melanoma. People with more moles than
average (greater than 100) are also at risk for
melanoma.
Moles
are present at birth in about 1 in 100 people.
They are called congenital nevi. These moles may
be more likely to develop a melanoma than moles
which appear after birth.
Moles
known as dysplastic nevi or atypical moles are
larger than average (usually larger than a pencil
eraser) and irregular in shape. They tend to have
uneven color with dark brown centers and a lighter,
sometimes reddish, uneven border or black dots
at the edge. These moles often run in families.
People
with dysplastic nevi may have a greater chance
of developing malignant melanoma and should be
seen regularly by a dermatologist to check for
any changes that might indicate skin cancer. They
should also learn to do regular self-examinations,
looking for changes in the color, size or shape
of their moles, or the appearance of new moles.
Sunscreen and protective clothing should be used
to shield moles from sun exposure.
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Molluscum
What
is Molluscum Contagiosum?
Molluscum
contagiosum is a common non-cancerous skin growth
caused by a viral infection in the top layers
of the skin. They are similar to warts, but are
caused by a different virus. The name molluscum
contagiosum implies that the virus and the growths
are easily spread by skin contact. The virus that
causes molluscum contagiosum belongs to a family
of viruses called poxviruses. This virus can enter
through small breaks in the skin or hair follicles
and can lead to the development of the molluscum
lesions. It does not affect any internal organs.
What
do molluscum look like?
Molluscum
are usually small, flesh-colored or pink, dome-shaped
growths. They may appear shiny and have a small
indentation in the center. Molluscum are often
found in clusters on the skin of the chest, abdomen,
arms, groin, or buttock. They can also involve
the face and eyelids. Because they can be spread
by skin-to-skin contact, molluscum are usually
found in areas of skin that touch each other such
as the folds in the arm or in the groin. Often
the molluscum may become red or inflamed. This
tends to occur just before the growth is ready
to go away on its own. Sometimes, the dermatologist
might scrape some cells from the lesion and look
at these under the microscope to confirm the diagnosis
of molluscum. In people with diseases of the immune
system, the molluscum may be very large in size
and may involve the face.
How
do you get molluscum?
The
molluscum virus is transmitted from the skin of
one person who has these growths to the skin of
another person. Molluscum occur most often in
cases where skin-to-skin contact is frequent.
They often occur in young children, especially
among siblings. Molluscum can also be sexually
transmitted if growths are present in the genital
area. It is also possible, but less likely, to
acquire the molluscum virus from non-living objects.
Molluscum may be spread between children in swimming
pools.
Why
do some people get molluscum and others don’t?
People
that are exposed more often to the molluscum virus
through skin-to-skin contact, have an increased
risk of developing these lesions. It is common
in young children who have not yet developed immunity
to the virus. Children tend to get molluscum more
than adults. Molluscum also seems to be more common
in tropical climates as warmth and humidity tend
to favor the growth of the virus. People with
HIV infections are more susceptible to acquiring
molluscum.
Do
molluscum need to be treated?
Many
dermatologists advise treating molluscum because
they spread. However, molluscum will eventually
go away on their own without leaving a scar. Because
the growths are easily spread from one area of
the skin to another, some growths may appear as
others are going away. It may take from six months
up to five years for all of the molluscum to go
away on their own. They may be more persistent
in people with a weakened immune system.
How do dermatologists treat molluscum?
Molluscum
are treated in the same ways that warts are treated.
They can be frozen with liquid nitrogen, destroyed
with various acids or blistering solutions, treated
with an electric needle
(electrocautery), scraped off with a sharp instrument
(curette), treated daily with a home application
of a topical retinoid cream or gel, treated with
a topical immune modifier, or treated with a topical
anti-viral medication. Some discomfort is associated
with freezing, scraping, and the electric needle.
Often these procedures are reserved for older
children and adults. If there are many growths,
multiple treatment sessions may be needed every
three to six weeks until the growths are gone.
It is also an option, especially with young children,
not to treat, and to wait for the growths to go
away on their own.
What
if the molluscum come back after treatment?
It
is always possible for a person’s skin to
get infected again with the molluscum virus. The
condition may be easier to control if treatment
is started when there are only a few growths.
The fewer the growths, the better the chance for
stopping their spread.
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Psoriasis
Psoriasis
is a persistent skin disease that got its name
from the Greek word for “itch”. The
skin becomes inflamed, producing red, thickened
areas with silvery scales, most often on the scalp,
elbows, knees, and lower back.
In
some cases, psoriasis is so mild that people don’t
know they have it. At the opposite extreme, severe
psoriasis may cover large areas of the body. Doctors
can help even the most severe cases.
Psoriasis
cannot be passed from one person to another, though
it is more likely to occur in people whose family
members have it. In the United States two out
of every hundred people have psoriasis
(four to five million people). Approximately 150,000
new cases occur each year.
What
Causes Psoriasis?
The
cause is unknown. However, recent discoveries
point to an abnormality in the functioning of
key white cells in the blood stream triggering
inflammation in the skin. This causes the skin
to shed itself too rapidly, every three to four
days.
People
often notice new spots 10 to 14 days after the
skin is cut, scratched, rubbed, or severely sunburned.
Psoriasis can also be activated by infections,
such as strep throat, and by certain medicines.
Flare-ups sometimes occur in the winter, as a
result of dry skin and lack of sunlight.
Types
of Psoriasis
Psoriasis
comes in many forms. Each differs in how bad it
is, how long it lasts, where it is, and in the
shape and pattern of the scales. The most common
form begins with little red bumps. Gradually these
grow larger and scales form. While the top scales
flake off easily and often, scales below the surface
stick together. When they are removed, the tender,
exposed skin bleeds. These small red areas then
grow, sometimes becoming quite large.
- Elbows,
knees, groin and genitals, arms, legs, scalp,
and nails are the areas most commonly affected
by psoriasis. It will often appear in the same
place on both sides of the body.
-
Nails with psoriasis have tiny pits on them.
Nails may loosen, thicken or crumble and are
difficult
to treat.
-
Inverse psoriasis occurs in the armpit, under
the breast and in skin folds around the groin,
buttocks,
and genitals.
-
Guttate psoriasis usually affects children and
young adults. It often shows up after a sore
throat, with
many small, red, drop-like, scaly spots appearing
on the skin. It often clears up by itself in
weeks or
a few months.
-
About seven percent of psoriasis patients also
have arthritis, which fortunately is not too
severe in
most people. In some people, the arthritis is
worst when the skin is very involved. Sometimes
the
arthritis improves when the condition of the
patient’s skin improves.
How
is Psoriasis Diagnosed?
Dermatologists
diagnose psoriasis by examining the skin, nails,
and scalp. They may need to take a skin biopsy
to examine under the microscope.
How
is Psoriasis Treated?
The
goal is to reduce inflammation and to slow down
rapid skin cell division. Moisturizing creams
and lotions loosen scales and help control itching.
Special diets have not been successful in treating
psoriasis.
Treatment
is based on a patient’s health, age, lifestyle,
and the severity of the psoriasis. Different types
of treatments and several visits to the dermatologist
may be needed.
The
doctor may prescribe medications to apply on the
skin containing cortisone-like compounds, synthetic
vitamin D, tar, or anthralin. These may be used
in combination with natural sunlight or ultraviolet
light. The most severe forms of psoriasis may
require oral medications, with or without light
treatment.
Sunlight
exposure helps the majority of people with psoriasis
but it must be used cautiously. Ultraviolet light
therapy may be given in a dermatologist’s
office, a psoriasis center or a hospital.
Types
of Treatment
Steriods
(Cortisone) – Cortisone creams, ointments,
and lotions may clear the skin temporarily and
control the condition in many patients. Weaker
preparations should be used on more sensitive
areas of the body such as the genitals, groin,
and face. Stronger preparations will usually be
needed to control lesions on the scalp, elbow,
knees, palms and soles, and parts of the torso
and may need to be applied under dressings. These
must be used cautiously and with the dermatologist’s
instruction. Side effects of the stronger cortisone
preparations include thinning of the skin, dilated
blood vessels, bruising, and skin color changes.
Stopping these medications suddenly may result
in a flare-up of the disease. After many months
of treatment, the psoriasis may become resistant
to the steroid preparations.
Scalp
Treatment – The treatment for psoriasis
of the scalp depends on the seriousness of the
disease, hair length, and the patient’s
lifestyle. A variety of non-prescription and prescription
shampoos, oils,
solutions, and sprays are available. Most contain
coal tar or cortisone. The patient must take care
to avoid harsh shampooing and scratching the scalp.
Vitamin
D – A synthetic Vitamin D, calcipotriene,
is now available in prescription form. It is useful
for individuals with localized psoriasis and can
be used with other treatments. Limited amounts
should be used to avoid side effects. Ordinary
Vitamin D, as one would buy in a drug store or
health food store, is of no value in treating
psoriasis.
Coal
Tar – For more than 100 years,
coal tar has been used to treat psoriasis. Today’s
products are greatly improved and less messy.
Stronger prescriptions can be made to treat difficult
areas.
Light
Therapy – Sunlight and ultraviolet
light slow the rapid growth of skin cells. Though
ultraviolet light or sunlight can cause skin wrinkling,
eye damage, and skin cancer, light treatment is
safe and effective under a doctor’s care.
People with psoriasis all over their bodies may
require treatment in a medically
approved center equipped with light boxes for
full body exposure. Psoriasis patients who live
in warm climates may be directed to carefully
sunbathe. Seek the advice of a dermatologist before
self-treating with natural or artificial sunlight.
Methotrexate
is an oral anti-cancer drug that can produce dramatic
clearing of psoriasis when other treatments have
failed. Because it can produce side effects, particularly
liver disease, regular blood tests are performed.
Chest x-rays and occasional liver biopsies may
be required. Other side effects include upset
stomach, nausea and dizziness.
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Rosacea
Rosacea
is a common skin disease that causes redness,
pustules, papules, and swelling on the face. Often
referred to as “adult acne”, rosacea
frequently begins as a tendency to flush or blush
easily. It may progress to persistent redness
in the center of the face that may gradually involve
the cheeks, forehead, chin, and nose. The eyes,
ears, chest, and back may also be involved. With
time, small blood vessels and tiny pimples begin
to appear on and around the reddened area; however,
unlike acne, there are no blackheads.
When
rosacea first develops, the redness may come and
go, Some people may flush or blush and never form
pustules or papules. Small dilated vessels also
may be present due to prolonged sun exposure.
However, when the skin does not return to its
normal color, and when other symptoms such as
pimples and enlarged blood vessels become visible,
it is best to seek advice from a dermatologist.
The condition may last for years, rarely reverse
itself, and can become worse without treatment.
About
50% of people with rosacea have eye involvement
(ocular rosacea). Some rosacea patients experience
burning and grittiness of the eyes, a common condition
known as conjunctivitis. If this condition is
not treated, it can lead to more serious eye complications.
How
to Recognize Rosacea
Small
red bumps, some of which may contain pus, appear
on the face. These may be accompanied by persistent
redness and the development of many tiny blood
vessels on the surface of the skin.
In
more advanced cases, a condition called rhinophyma
may develop. The oil glands enlarge causing a
bulbous, red nose, and puffy cheeks. Thick bumps
may develop on the lower half of the nose and
nearby cheeks. Rhinophyma occurs more commonly
in men.
Who
is at Risk for Rosacea?
Fair
skinned adults between the ages of 30 and 50 may
develop rosacea. It affects men and women of any
age, and even children. Since it may be associated
with menopause, women are affected more often
than men and may notice an extreme sensitivity
to cosmetics. An occasional embarrassment or a
tense moment also may trigger flushing.
Tips
for Rosacea Patients
-
Avoid triggers, including hot drinks, spicy
foods, caffeine, and alcoholic beverages that
make the face
red or flushed. It is important to note that
although alcohol may worsen rosacea, the condition
may
be just as severe in someone who does not drink
at all; thus rosacea has been unfairly linked
to
alcoholism.
-
Practice good sun protection. Seek shade when
possible and limit exposure to sunlight, wear
hats
and use broad-spectrum sunscreens with SPF of
15 or higher; reapply every 2 hours.
-
Avoid extreme hot and cold temperatures which
may exacerbate the symptoms of rosacea. Exercise
in a cool environment. Do not overheat.
-
Avoid rubbing, scrubbing or massaging the face.
-
Avoid cosmetics and facial products that contain
alcohol. Use hair sprays properly, avoiding
contact
with facial skin.
-
Keep a diary of flushing episodes and note associated
foods, products, activities, medications or
other
triggering factors.
Treatment
Many
people with rosacea do not recognize it in its
early stages. Identifying the disease is the first
step
to controlling it. Self diagnosis and treatment
are not recommended since some over-the-counter
skin
products may make the problem worse.
Dermatologists
often recommend a combination of treatments tailored
to the individual patient. These
treatments can stop the progress of rosacea and
sometimes reverse it.
Creams,
lotions, foams, washes, gels, and pads that contain
various topical antibiotics, metronidazole, sulfacetimide,
benzoyl peroxide, and retinoids may be prescribed.
A slight improvement can be seen in the first
three to four weeks of use. Greater improvement
is usually noticed in two months.
Oral
antibiotics tend to produce faster results than
topical medications. Cortisone creams may reduce
the redness of rosacea; however, they should not
be used for longer than two weeks since they can
cause thinning of the skin and flare-ups upon
discontinuation. It is best to use these creams
only under the direction of a dermatologist.
The
persistent redness may be treated with laser surgery
to close off the dilated blood vessels. Cosmetics
also may be helpful. Green-tinted makeup may mask
the redness.
The
key to successful management of rosacea is early
diagnosis and treatment. It is important to follow
all of the dermatologist’s instructions.
When left untreated, rosacea will get worse and
may be more difficult to treat.
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Seborrheic
Keratoses
Seborrheic
Keratoses (SKs) are common skin growths. These
benign (non-cancerous) growths can occur almost
anywhere on the skin. Some people get just one;
others develop many. Having many SKs is more common.
Usually
beginning as small, rough bumps, SKs tend to eventually
thicken and develop a warty surface. Most are
brown, but these growths range in color from light
tan to black. Some SKs measure a fraction of an
inch; others are larger than a half-dollar. A
SK can be flat or raised. Sometimes the surface
feels smooth.
What
often distinguishes these growths from other lesions
is a waxy, pasted-on-the-skin appearance. A SK
can look like a dab of warm, brown candle wax
on the skin. It also may resemble a barnacle attached
to a ship. Either way, SKs tend to have that stuck-on-the-skin
appearance.
Causes
While
the exact cause remains unknown, researchers have
discovered some key findings. SKs seem to run
in families, and it appears that some people inherit
a tendency to develop many SKs. Although these
growths develop on both sun-exposed and non sun-exposed
skin, some studies suggest that sun exposure may
play a role. The exact cause is unknown. And while
SKs may seem to multiply and spread to other areas,
they are not contagious.
Those
at Risk
While
anyone may develop SKs, these growths generally
first appear in middle age or later.
Where
They Appear
Most
often forming on the chest and back, SKs also
can be found on the scalp, face, neck, or almost
anywhere on the skin. They do not develop on the
palms or soles.
When
Treatment is Needed
Since
SKs are benign, treatment is generally not necessary.
There are times, though, when these lesions should
be examined by a dermatologist. Sometimes a SK
grows quickly, turns black, itches, or bleeds,
making it difficult to distinguish from skin cancer.
Such a growth must be biopsied (removed and studies
under a microscope) to determine if it is cancerous
or not.
Treatment
may be recommended if the growth is large or easily
irritated by clothing or jewelry. Sometimes, a
SK is treated because the patient considers it
unsightly. In these last two cases, there are
a few treatment options.
Treatment
Options
Cryosurgery,
electrosurgery, and curettage are the most common
options for removing SKs.
- Cryosurgery
– Liquid nitrogen, a very cold liquid,
is applied to the growth with a cotton swab
or
spray gun. This “freezes” the growth.
The SK usually falls off within days. Sometimes
a blister
forms under the SK and dries into a scab-like
crust that falls off. After the growth falls
off, a small
dark or light spot may appear on the skin. This
usually fades over time. A permanent white spot
is a possible side effect of this treatment.
- Electrosurgery
and Curettage – Electrosurgery involves
anesthetizing (numbing) the growth and
using an electric current to cauterize (burn)
the growth. A scoop-shaped surgical instrument,
a
curette is used to scrape off the treated lesion.
This is a curettage. Stitches are not necessary.
There may be minimal bleeding, which is controlled
by applying pressure or a blood-clotting
chemical. Sometimes only electrosurgery or curettage
is necessary.
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Skin
Cancer
BASAL CELL CARCINOMA – Basal cell
carcinoma (BCC) is the most common form of skin
cancer. It also is the most common cancer in the
world, and the number of cases continues to rise.
The reason for this rise may be that people are
receiving more unprotected exposure to the harmful
ultraviolet (UV) rays of the sun.
The
likelihood of developing BCC also increases when
you have one or more of the following risk factors:
-
Fair skin
-
Blond or red hair
-
Blue or green eyes
-
Family history of skin cancer
-
Weakened immune system
-
Received radiation therapy
-
Exposure to coal tar, pitch, creosote, or arsenic
Age
is another risk factor. While BCC can occur at
any age, the risk of developing this skin cancer
increases significantly with age.
What
they look like
The
BCC tumor appears in many shapes and sizes. It
often looks like a small, dome-shaped, pimple-like
growth that has a pearly color. Blood vessels
may be seen on the surface. In a very early stage,
BCC may be a shiny, pinkish patch on the skin.
BCC also can appear as a sore that seems to repeatedly
heal and return. A less common form, morpheaform,
looks like a smooth white or yellowish waxy scar.
Most
BCCs develop on sun-exposed areas such as the
head, neck, trunk, and legs, but BCC can appear
anywhere on the body. A dermatologist should examine
all new growths and changes to your skin.
Basal
Cell Carcinoma is Serious
While
BCC rarely spreads to other areas of the body,
it can invade and destroy surrounding tissue,
causing permanent disfigurement. When a BCC tumor
develops near an organ such as an eye, ear, or
nose, or grows near a nerve, this can be especially
concerning. Complications such as loss of an eye
can arise if the cancer invades. Early diagnosis
and proper treatment can prevent this.
Diagnosis
A
biopsy is required to diagnose skin cancer. A
dermatologist can perform this simple procedure
in the office by numbing the area and then removing
the suspicious lesion (or a portion of it). The
removed tissue is examined under a microscope
to see if cancer is present.
Treatment
When
the diagnosis is BCC, the dermatologist has a
number of surgical and non-surgical options. The
appropriate treatment depends on the size, location,
and characteristics of the tumor, as well as the
overall health and needs of the patient. Most
BCCs are treated with one of the following:
- Simple
Surgical Excision – The dermatologist
cuts out the tumor and some of the surrounding
healthy tissue. The removed tissue is examined
under a microscope to see if all of the skin
cancer
has been removed.
-
Mohs Micrographic Surgery – Performed
by a specially trained dermatologic surgeon,
Mohs involves
removing the visible tumor and then successive
layers of skin one at a time until cancer cells
are no
longer found.
-
Electrodesiccation & Curettage – The
dermatologist removes the tumor by scraping
or “curetting”
it and then burning the base with an electric
needle. The latter is “electrodessication”.
-
Topical Therapy – The dermatologist prescribes
a cancer-fighting medication, such as imiquimod
or
5-fluorouracil, which the patient can apply
to the skin cancer at home.
Post
Treatment
After
receiving treatment for BCC, follow-up appointments
are scheduled. These appointments are essential
because studies show that a person who develops
BCC has an increased risk of developing
another BCC or other form of skin cancer, including
melanoma. Follow-up visits also are important
because BCC can return after treatment. Cure rates
and survival rates are highest with early detection
and treatment.
You
also should perform regular self-examinations
of your skin as this can help detect skin cancer
in its earliest stage. Be alert to any non-healing
sore and other changes to your skin.
Prevention
- Generously
apply a broad-spectrum water-resistant sunscreen
with a Sun Protection Factor (SPF) of
30 or more to all exposed skin. “Broad-spectrum”
provides protection from both ultraviolet A
(UVA)
and ultraviolet B (UVB) rays. Re-apply approximately
every two hours, even on cloudy days, and
after swimming or sweating.
-
Wear protective clothing, such as a long-sleeved
shirt, pants, a wide-brimmed hat and sunglasses,
where possible.
-
Seek shade when appropriate, remembering that
the sun’s rays are strongest between 10
a.m. and
4 p.m. If your shadow is shorter than you are,
seek shade.
-
Protect children from sun exposure by playing
in the shade, using protective clothing, and
applying
sunscreen.
-
Use extra caution near water, snow and sand
as they reflect the damaging rays of the sun
which can
increase your chance of sunburn.
-
Get vitamin D safely through a healthy diet
that may include vitamin supplements. Don’t
seek the
sun.
-
Avoid tanning beds. Ultraviolet light from the
sun and tanning beds can cause skin cancer and
wrinkling. If you want to look like you’ve
been in the sun, consider using a sunless self-tanning
product, but continue to use sunscreen with
it.
-
Check your birthday suit on your birthday. If
you notice anything changing, growing, or bleeding
on
your skin, see a dermatologist. Skin cancer
is very treatable when caught early.
SQUAMOUS
CELL CARCINOMA – Squamous cell
carcinoma (SCC) is the second most common type
of skin cancer. Together with basal cell carcinoma,
the most common skin cancer, these two cancers
are collectively referred to as nonmelanoma skin
cancer.
Of
the more than 1 million cases of skin cancer that
will be diagnosed in the United States this year,
approximately 20% will be SCC. Most cases of SCC
will be caused by exposure to the sun’s
harmful
ultraviolet (UV) rays. The risk of developing
SCC increases when a person also has one or more
of these risk factors:
- Fair
skin
-
Blond or red hair; blue or green eyes
-
History of indoor tanning
-
Diagnosed with actinic keratoses (pre-cancers)
-
Family history of skin cancer
- Weakened
immune system (immunosuppression)
- Received
radiation therapy
- History
of exposures to coal tar products or arsenic
The
risk of developing SCC also increases with age
because each exposure to harmful UV rays causes
more damage to the skin. As this damage accumulates,
the risk of developing skin cancer grows.
What
it looks like
SCC
usually looks like a red crusted or scaly patch
on the skin, a non-healing ulcer, or a firm red
nodule.
Generally appearing on sun-exposed areas such
as the head, neck, ears, trunk, and arms, SCC
also can develop on other areas of the body. Some
SCCs develop from small sandpaper-like lesions
called actinic keratoses, which also are caused
by exposure to sun’s UV rays.
Squamous
Cell Carcinoma is Serious
With
early detection and proper treatment, SCC is curable.
Allowed to progress, SCC can invade and destroy
much of the tissue surrounding the cancerous tumor,
which can be disfiguring.
Some
SCCs such as those that develop on a lip or an
ear can be particularly aggressive. Left untreated,
aggressive SCCs have a greater risk for metastasis
(spreading) to the lymph nodes and other internal
organs. This makes early diagnosis and treatment
of SCC essential.
A dermatologist
should examine any lesion that looks like a red
crusted or scaly patch or a non-healing sore.
Diagnosis
and Treatment
Before
SCC can be treated, the diagnosis must be confirmed
with a biopsy. This simple procedure can be performed
in the office and involves removing a small amount
of tissue so that it can be examined under a microscope.
If the diagnosis is SCC, a variety of surgical
and non-surgical treatment options are available.
The dermatologist will choose an appropriate treatment
after considering the location of the tumor, size,
microscopic characteristics, health of the patient,
and other factors.
Most
treatment options are relatively minor office-based
procedures that require only local anesthesia.
These include:
-
Simple surgical excision – Removes the
cancer and some of the surrounding healthy tissue.
The
removed specimen is examined under a microscope
to determine if all of the skin cancer has been
removed.
-
Mohs Micrographic Surgery – Performed
by a specially trained dermatologic surgeon,
Mohs allows
the surgeon to spare as much normal skin as
possible while simultaneously removing the cancer.
-
Electrodesiccation & Curettage – Removes
the cancerous tumor by scraping (curetting)
it off. The
base of the tumor is burned (cauterized) with
an electric needle (electrodesiccation).
-
Topical Therapy – Medications such as
imiquimod and 5-fluorouracil can be applied
at home to treat
the cancer.
Follow
Up
Most
patients with localized (cancer confined to the
tumor and has not spread) SCC have an excellent
prognosis. Cure rates range from 85% to 95% or
greater.
Even
so, follow-up appointments with a dermatologist
are essential. SCC can recur, and studies show
that individuals who develop SCC have an increased
risk of developing future skin cancers, including
melanoma. The recommended follow-up may include
a full-body skin examination at least once a year
to check for abnormal moles or lesions. Patients
also should perform regular skin self-examinations
and be alert to any non-healing sores and other
changes that develop on the skin. If any of these
are spotted, make an appointment to see a dermatologist.
Prevention
-
Generously apply a broad-spectrum water-resistant
sunscreen with a Sun Protection Factor (SPF)
of 30 or more to all exposed skin. “Broad-spectrum”
provides protection from both ultraviolet A
(UVA) and ultraviolet B (UVB) rays. Re-apply
approximately every two hours, even on cloudy
days,
and after swimming or sweating.
-
Wear protective clothing, such as a long-sleeved
shirt, pants, a wide-brimmed hat and sunglasses,
where possible.
-
Seek shade when appropriate, remembering that
the sun’s rays are strongest between 10
a.m. and
4 p.m. If your shadow is shorter than you are,
seek shade.
-
Protect children from sun exposure by playing
in the shade, using protective clothing, and
applying
sunscreen.
-
Use extra caution near water, snow and sand
as they reflect the damaging rays of the sun
which can
increase your chance of sunburn.
-
Get vitamin D safely through a healthy diet
that may include vitamin supplements. Don’t
seek the
sun.
-
Avoid tanning beds. Ultraviolet light from the
sun and tanning beds can cause skin cancer and
wrinkling. If you want to look like you’ve
been in the sun, consider using a sunless self-tanning
product, but continue to use sunscreen with
it.
-
Check your birthday suit on your birthday. If
you notice anything changing, growing, or bleeding
on your skin, see a dermatologist. Skin cancer
is very treatable when caught early.
MELANOMA
– Melanoma is a cancer of the pigment
producing cells in the skin known as melanocytes.
Cancer is a condition in which one type of cell
grows without limit in a disorganized fashion,
disrupting
and replacing normal tissues and their functions,
much like weeds overgrowing a garden. Normal melanocytes
reside in the outer layer of the skin and produce
a brown pigment called melanin which is responsible
for skin color. Melanoma occurs when melanocytes
become cancerous, grow, and invade other tissues.
Melanoma
begins on the surface of the skin where it is
easy to see and treat. If given time to grow,
melanoma can grow down into the skin, ultimately
reaching the blood and lymphatic vessels, and
spread around the body (metastasize), causing
a life-threatening illness. It is curable when
detected early, but can be fatal if allowed to
progress and spread. The goal is to detect melanoma
early when it is still on the surface of the skin.
What
causes it ?
It
is not certain how all cases of melanoma develop.
However, it is clear that excessive sun exposure,
especially severe blistering sunburns early in
life, can promote melanoma development. There
is evidence that ultraviolet radiation used in
indoor tanning equipment may cause melanoma. The
risk for developing melanoma may also be inherited.
Who
gets it ?
Anyone
can get melanoma, but fair-skinned, sun-sensitive
people are at a higher risk. Since ultraviolet
radiation from the sun is a major culprit, people
who tan poorly, or burn easily are at the greatest
risk.
In
addition to excessive sun exposure throughout
life, people with many moles are at an increased
risk to develop melanoma. The average person has
around 30 moles, and most are without significance;
however, people with more than 50 moles are at
a greater risk. In addition to the number of moles,
some people have moles that are unusual and irregular
looking. These moles (nevi) are known as dysplastic
or atypical moles. People with atypical moles
are at an increased risk of developing melanoma.
Melanoma also runs in families. If a relative
such as a parent, aunt or uncle had melanoma,
other blood relatives are at an increased risk
for melanoma. The following factors help to identify
those at risk for melanoma:
•
Fair skin
•
A history of sunburns
•
More than 50 moles
•
Atypical moles
•
Close relatives who have had melanoma
Anyone
can develop melanoma, but people with one or more
of the risk factors are more likely to do so.
Periodic skin examinations by a dermatologist
can truly be life saving.
What to look for?
Melanoma
can occur anywhere on the skin or the nails, even
in places not directly exposed to the sun like
the eyes, mucous membranes (mouth and genitals),
or internal organs. It is most common on the backs
of men and legs of women. Melanoma is usually
brown or black in color, but sometimes, though
rare, may be red, skin-colored, or white. It can
arise from a pre-existing mole, or appear on previously
normal skin. Melanomas grow slowly; therefore,
growing, changing, or irregular lesions should
arouse suspicion. When looking at a spot on the
skin it is helpful to apply the ABCD rules:
A
is for asymmetry.
Draw an imaginary line through the middle
of the lesion, either up and down or side-to-side.
Are the two sides the same size and shape
(symmetric) ? Melanomas are usually asymmetric,
meaning one side is unlike the other. Melanomas
can also be flat or raised.
B
is for border.
The edge or border of a melanoma is usually
irregular. The border can be ragged, notched,
scalloped, blurred, or poorly defined.
C
is for color.
Benign (not cancerous) moles can be any color,
but a single mole will be only one color.
Melanomas
usually vary in shades of tan, brown, or black.
Sometimes they can be white, red, or blue.
They often have a variety of hues and colors
within the same lesion.
D
is for diameter.
While melanomas are usually greater than 6
millimeters in diameter (the size of a pencil
eraser) when diagnosed, they can be smaller.
If you notice a mole different from others,
or which changes, itches, or bleeds (even
if it is small) you should see a dermatologist.
What
treatment is available?
The
best treatment is early detection. A quick look
from a dermatologist can confirm whether a lesion
is suspicious for melanoma. If so, the next step
is to perform a biopsy. This involves numbing
the area and removing the entire lesion, or a
portion, which can be examined under a microscope.
This simple, quick procedure is performed in the
dermatologist’s office. If a melanoma is
detected, treatment is guided by how deep the
melanoma penetrates the skin.
Treatment
for melanoma begins with the surgical removal
of the melanoma and some normal-looking skin around
the growth. Removal of the normal-looking skin
is known as taking margins, and is done to be
sure no melanoma is left behind. Early melanoma
limited to the outermost layer of the skin (the
epidermis) is known as melanoma in situ (in place),
and simple surgical removal produces virtually
a
100 percent cure rate. If left untreated, the
melanoma grows deeper in the skin and is more
likely to produce a life-threatening situation.
Deeper
melanomas are more likely to reach a blood vessel
or lymphatic channel and spread. When a melanoma
spreads, it goes to the lymph nodes first. The
lymph nodes are part of the lymphatic system,
a series of vessels throughout the body that are
responsible for cleaning the body’s tissue.
Different lymph nodes serve different parts of
the body. It may be possible to find the melanoma
in the lymph node before it goes any further.
A procedure called a sentinel lymph node biopsy
is a way of identifying and testing the first
lymph node into which the melanoma drains. The
decision to perform a sentinel lymph node biopsy
is based on how deep the melanoma is in the skin,
and how likely it is to have spread.
Once
the melanoma has spread (metastasized) and the
nodes have been evaluated, it requires a different
treatment plan which may include surgical removal,
chemotherapy, immunotherapy, or radiation therapy.
What
can be done for protection?
Since
excessive exposure to ultraviolet radiation is
one contributing factor to melanoma, it makes
common sense to use sun protection. Avoid sun
exposure from 10 a.m. through 4 p.m. when the
sun is the strongest. Wear a broad-spectrum sunscreen,
one that blocks both types of ultraviolet light
(UVA and UVB), and reapply every two hours. Wear
a wide-brimmed hat, sunglasses, and tightly-woven
clothing that will block ultraviolet light. White
cotton shirts only block 50% of the sun’s
rays. Avoid
indoor tanning.
Early
detection remains the best treatment. Therefore,
looking for irregular lesions that are growing
and changing and skin self-examinations should
be performed monthly. Remember to use the ABCD
rules, and to see a dermatologist periodically
for a complete skin examination. If a mole is
changing, see a dermatologist immediately.
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Tinea
Versicolor
Tinea
versicolor is a common skin condition due to overgrowth
of a skin surface yeast. This overgrowth results
in uneven skin color and scaling that can be unsightly
and sometimes itch. The yeast normally lives in
the pores of the skin and thrives in oily areas
such as the neck, upper chest, and back.
What
does tinea versicolor look like and how do you
recognize it?
Tinea
versicolor has small, scaly white-to-pink or tan-to-dark
spots which can be scattered over the upper arms,
chest, and back. They may sometimes appear on
the neck and the face. On light skin, tinea versicolor
may be faint or can appear as tan-to-pink spots,
while on dark skin tinea versicolor may be light
or dark. The fungus grows slowly and prevents
the skin from tanning normally. As the rest of
the skin tans in the sun, the pale spots, which
are affected by the yeast, become more noticeable,
especially on dark skin.
What
are the symptoms?
Tinea
versicolor usually produces few symptoms. Occasionally,
there is some slight itching that is more intense
when a person gets hot.
Who
may get this rash?
Most
people get tinea versicolor when they are teenagers
or young adults. People with oily skin may be
more susceptible than those with naturally dry
skin.
The
yeast is normally present in small numbers on
everyone’s skin. Anyone can develop an overgrowth
of yeast. During the summer months when the temperature
and humidity are high, the yeast can increase.
The excess yeast on the skin prevents the normal
pigmentation process, resulting in light and dark
spots.
How
is tinea versicolor diagnosed?
Although
the light or dark colored spots can resemble other
skin conditions, tinea versicolor can be easily
recognized by a dermatologist. In most cases,
the appearance of the skin is diagnostic, but
a simple examination of the fine scales scraped
from the skin can confirm the diagnosis. Scales
are lightly scraped onto a slide and examined
under a microscope for the presence of the yeast.
How
is it treated?
Tinea
versicolor is treated with topical or oral medications.
Topical treatment includes special cleansers including
some shampoos, creams, or lotions applied directly
to the skin.
Several
oral medications have been used successfully to
treat tinea versicolor. Because of possible side
effects, or interactions with other medications,
the use of these prescription medicines should
be supervised by your dermatologist. After any
form of treatment, the uneven color of the skin
may remain several months after the yeast has
been eliminated until the skin repigments normally.
Tinea
versicolor may recur. Special cleansers may decrease
episodes when used once or twice a month, especially
during warm humid months of the year.
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Vitiligo
Vitiligo
is a skin condition resulting from loss of pigment
which produces white patches. Any part of the
body may be affected. Usually both sides of the
body are affected. Common areas of involvement
are the face, lips, hands, arms, legs, and genital
areas.
Who
Gets Vitiligo
Vitiligo
affects one or two of every 100 people. About
half the people who develop it do so before the
age of 20; about one-fifth have a family member
with this condition. It may be an autoimmune process
(the body makes antibodies to its own pigment
cells). Most people with vitiligo are in good
general health, although vitiligo may occur with
other autoimmune diseases such as thyroid disease.
What
Determines Skin Color?
Melanin,
the pigment that determines color of skin, hair,
and eyes, is produced in cells called melanocytes.
If these cells die or cannot form melanin, the
skin becomes lighter or completely white.
How
Does Vitiligo Develop?
Typical
vitiligo shows areas of milky-white skin. However,
the degree of pigment loss can vary within
each vitiligo patch. There may be different shades
of pigment in a patch, or a border of darker skin
may circle an area of light skin.
Vitiligo
often begins with a rapid loss of pigment. This
may continue until, for unknown reasons, the process
stops. Cycles of pigment loss, followed by times
where the pigment doesn’t change, may continue
indefinitely.
It
is rare for skin pigment in vitiligo patients
to return on its own. Some people who believe
they no longer have vitiligo actually have lost
all their pigment and no longer have patches of
contrasting skin color. Although their skin is
all one color, they still have vitiligo.
The
course and severity of pigment loss differ with
each person. Light-skinned people usually notice
the contrast between areas of vitiligo when their
skin is suntanned in the summer. Year round, vitiligo
is more obvious on people with darker skin. Individuals
with severe cases can lose pigment all over the
body. There is no way to predict how much pigment
an individual will lose.
How
is Vitiligo Treated?
Sometimes the best treatment for vitiligo is no
treatment at all. In fair-skinned individuals;
avoiding tanning of normal skin can make areas
of vitiligo almost unnoticeable because the (no
pigment) white skin, of vitiligo has no natural
protection from sun. These areas are easily sunburned,
and people with vitiligo have an increased risk
to skin cancer. They should wear a sunscreen with
a SPF of at least 30 on all areas of vitiligo
no covered by clothing. Avoid the sun when it
is most intense to avoid burns.
Disguising
vitiligo with make-up, self-tanning compounds
or dyes is a safe, easy way to make it less
noticeable. Waterproof cosmetics to match almost
all skin colors are available. Self-tanning compounds
contain a chemical called dihydroxyacetone that
does not need melanocytes to make the skin a tan
color. The color from self-tanning creams slowly
wears off. None of these change the disease, but
they can improve appearance.
If
sunscreens and cover-ups are not satisfactory,
your dermatologist may recommend other treatment.
Treatment can be aimed at returning normal pigment
(repigmentation) or destroying remaining pigment
(depigmentation). None of the repigmentation methods
are permanent cures.
Treatment
of Vitiligo in Children
Aggressive
treatment is generally not used in children. Sunscreen
and cover-up measures are usually the best treatments.
Topical corticosteroids can also be used, but
must be monitored.
Repigmentation
Therapy
Topical
Corticosteriods – Creams containing corticosteroid
compounds can be effective in returning pigment
to small areas of vitiligo. These can be used
along with other treatments. These agents can
thin the skin or even cause stretch marks in certain
areas. They should be used under your dermatologist’s
care.
PUVA
PUVA
is a form of repigmentation therapy where a type
of medication known as psoralen is used. This
chemical makes the skin very sensitive to light.
Then the skin is treated with a special type of
ultraviolet light called UVA. Sometimes, when
vitiligo is limited to a few small areas, psoralens
can be applied to the vitiligo areas before UVA
treatments. Usually, however, psoralens are given
in pill form. Treatment with PUVA has a 50 to
70% chance of returning color on the face, trunk,
upper arms, and upper legs. Hands and feet respond
very poorly. Treatments are required twice a week
for at least a year. PUVA must be given under
close supervision by your dermatologist. Side
effects of PUVA include sunburn-type reactions.
When used long-term, freckling of the skin may
result and there is an increased risk of skin
cancer. Because psoralens also make the eyes more
sensitive to light, UVA blocking eyeglasses must
be worn from the time of exposure to psoralen
until sunset that day to prevent an increased
risk of cataracts. PUVA is not usually used in
children under the age of 12, in pregnant or breast
feeding women, or in individuals with certain
medical conditions.
Narrow
Band UVB (NBUVB) – This is a form of phototherapy
that requires the skin to be treated two, sometimes
three, times a week for a few months.
Other
Treatment Options
Other
treatment options include a new topical class
of drugs called immunomodulators. Due to their
safety profile they may be useful in treating
eyelids and children.
Is
Vitiligo Curable?
At this time, the exact cause of vitiligo is not
known, however, there may be an inherited component.
Although treatment is available, there is no single
cure. Research is ongoing in vitiligo and it is
hoped that new treatments will be developed.
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Warts
What
are warts ?
Warts
are non-cancerous skin growths caused by a viral
infection in the top layers of skin. The virus
that causes warts is called the human papilloma
virus, or HPV. Warts are usually skin-colored
and feel rough
to the touch, but they can be dark, flat, and
smooth. The appearance of a wart depends upon
where it is growing.
How
many kinds of warts are there?
There
are several different kinds of warts including:
-
Common warts
-
Plantar warts
-
Flat warts
-
Genital warts
Common
warts (verruca vulgaris) usually grow
on the fingers, around the nails, and on the backs
of the hands. They are more common in skin that
has been broken, such as areas where fingernails
have been bitten or hangnails have been picked.
These are often called “seed” warts
because the blood vessels to the warts produce
black dots that look like seeds.
Plantar
warts (verruca plantaris) are common
warts located on the soles of the feet. Warts
on the palms (verruca Palmaris) would be called
palmar warts. When many small plantar warts grow
in clusters, they are known as mosaic warts because
they fit together like mosaic tiles, making them
more stubborn to treat. Most plantar warts do
not stick up above the surface like common warts
because the pressure of walking flattens them
and pushes them back into the skin. Black dots
may also be seen in these warts. Plantar warts
can be very painful.
Flat
warts (verruca-plana) are smaller and
smoother than other warts. They tend to grow in
large numbers – 20 to 100 at any one time.
They can occur anywhere, but are most common on
the face, in the beard area in men, and on the
legs in women. Irritation or microscopic cuts
in the skin from shaving probably contribute to
them.
Genital
warts (condylomata acuminata) are usually
sexually transmitted and can be spread from close
physical contact and repeated exposures. They
are also seen in infants who have been delivered
vaginally to mothers with HPV in their genital
tract. Genital warts are flesh-colored, and may
be rough or smooth. They can be large or small
and found as a single growth or in groups. Genital
warts appear on the genitals, inside the vagina,
on the cervix, or around the anus.
Why
do some people get warts and others do not ?
Wart viruses occur more easily if the skin has
been damaged in some way, which explains the high
frequency of warts in children who bite their
nails or pick at hangnails. Just as some people
catch colds very easily, some people are more
likely to catch the wart virus than others.
Do
warts need to be treated?
In
children, warts can disappear without treatment
over a period of several months to years. However,
warts that are bothersome, painful, or multiplying
rapidly should be treated. Warts in adults often
do not disappear as easily or as quickly as they
do in children.
How
do dermatologists treat warts?
- A
variety of treatments are available depending
upon the age of the patient, the location of
the wart, and the type of wart.
-
Salicylic acid gels, solutions, or plasters
may be prescribed for daily home treatments.
There is usually
little discomfort but it can take many weeks-months
of treatment to obtain results.
-
Cantharidin is a chemical that can be applied
in the dermatologist’s office. It causes
a blister to form
under the wart. The dermatologist can then clip
away the dead part of the wart in the blister
roof in
a week or so, and re-treat the remaining wart
of necessary.
-
Cryotherapy is freezing with a cold liquid gas
called liquid nitrogen. This treatment causes
a blister to
form which can be clipped in a week; repeat
treatment at one to three week intervals is
usually
required. Cryotherapy may be painful, and can
result in scarring.
-
Laser treatment can also be used for resistant
warts that have not responded to other therapies.
-
Surgery or cutting may be used to remove the
wart.
-
Imiquimod is a cream that causes an inflammatory
response which makes the wart go away. It
may be applied at home and is especially good
for genital warts.
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