Age-spots, Moles, Melasma and other Pigmented Lesions
A variety of lasers and pulsed light can be use to treat
these varied pigment problems.
Discoloration of the skin can be present at birth or acquired
as the result of age, sun, or other influences. Pigmented
lesions can be cosmetically undesirable and distracting from
how we want to be perceived by others. Fortunately, modern
laser technology provides effective treatment for may types
of pigmented skin lesions.
Birthmarks
The pigmented birth-marks include Café-au-lait spots
which are the light brown color of milky coffee. These can
be small or very large and can appear on any part of the
body.
Nevus of Ota is a pigmented birthmark which can be very
large and occurs on the face. It is most common in Oriental
skin.
Freckles
Freckles, also called ephilides, are very small spots of
concentrated pigment stimulated by the sun that tend to
remain in stable locations on sun exposed areas. This is,
of course, a very common condition.
Age spots (lentigines)
Age spots, also called liver spots or lentigines are abnormal
pigment accumulations in the epidermis due to many years
of sun exposure. They occur on the face, neck, chest, back
as well as the forearms and hands.
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Melasma
Melasma is called "the mask of pregnancy". It is pigment
that has been stimulated by hormonal influence such as from
pregnancy or certain hormone medications. It commonly occurs
around the eyes with a mottled appearance from the various
intensities of pigment in the spots.
Tattoos
Cosmetic tattoos vary in the color of inks used, the depth
of ink placement (professional vs. amateur tattoos) and
chemical nature of the inks. The laser light color must
be selected which is effective for each color in the tattoo.
Traumatic tattoo are from the deposition of colored material
under the skin from a deep dirty abrasion or other injury.
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Laser Treatment of Pigmented Lesions
Lasers can effectively treat many types of pigmented skin
lesions. The choice of laser depends primarily on the depth
and color of the pigment that is being removed. Pigment
in the epidermis is fairly easy to treat with a variety
of lasers and non-laser methods.
Resurfacing procedures such as laser skin resurfacing and
even the "power peel" treatments are effective in removing
epidermal pigment. Patients undergoing these treatments can
expect significant improvement or complete clearing of epidermal
pigment. A series of light chemical peels can also remove
pigment abnormalities safely.
But for small concentrations of unsightly pigment such as
age spots, a pigment specific laser often is a better solution.
At Aesthetics MD we use a "KTP" laser (a green light laser),
Intense pulsed-light treatments, Fraxel Treatments, or the
Erbium Laser for epidermal pigment spots. In just a few moments
the pigment is broken up within the skin to be cleared by
the body. In a week to 10 days it is gone. Sometimes a second
treatment is necessary for complete results. The only usual
side effect is superficial skin crusting which rapidly heals.
The KTP laser is effective for age spots, freckles, and
cafÈ-au-lait spots. The Erbium laser is used when complete
removal is desired in a single treatment session. Choice
of treatment is discussed during your consultation.
For deeper pigment, in the dermis, a higher energy Q-switched
laser is used. These are effective on junctional and certain
other moles, Nevus of Ota, Beckerís Nevus, and tattoo pigments.
There are four types of Q-switched lasers that have certain
advantages with various forms of pigment. For multi-colored
tattoos it takes two or more different lasers to treat the
various tattoo pigment colors. Multiple treatments are to
be expected for good results. Moles may often be more easily
removed by simple excision rather than by laser treatments.
Melasma can sometimes be improved with laser therapy. But
it might tend to come back regardless of which method is
used. Fraxel laser treatment is the most effective treatment
method for melasma currently available.
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