Facts on File Encyclopedia of Health and Medicine

metic procedure, though may be restorative to correct damage resulting from injuries or BIRTH DEFECTS. Surgical Procedure Hair r ...

Outlook and Lifestyle Modifications For the first few weeks following surgery the scalp is swollen and tender, and the replaceme ...

Treatment Options and Outlook Treatment options currently available in the United States include topical products, oral med- ica ...

I–J ichthyosis A genetic disorder of keratinization in which the cells the SKINsheds as part of its contin- ual renewal cluster ...

cle, causing INFLAMMATIONand INFECTION(FOLLICULI- TIS). People who have curly or kinky hair are more likely to develop ingrown h ...

K Kaposi’s sarcoma A CANCERthat develops in the connective tissues that support the SKIN, with characteristic lesions on the ski ...

ENDOSCOPY can determine whether there are lesions elsewhere in the body, such as in the gas- trointestinal tract, when symptoms ...

keloid An overgrowth of collagen after a wound has finished HEALING. A keloid typically forms as folds or bunches of tissue. Kel ...

bumps on the SKINthat resemble GOOSE BUMPS. The bumps may be the same color as the skin or slightly reddened and create a textur ...

L laser skin resurfacing A method for smoothing scars, ACNEpitting, WRINKLES, and other blemishes from the SKIN, primarily on th ...

mild bleaching action that reduces pigmentation in the areas of application. Cosmetic procedures such as dermatologist-performed ...

like appearance (plaques). Lichen simplex chroni- cus sometimes develops in areas of the skin that have previously had irritatio ...

M macule A small SKIN LESIONthat is flat, smooth, and discolored. Macules are common and may appear as the presenting symptom fo ...

Dysfunctions of Melanocytes There are three significant dysfunctions of mela- nocytes: •ALBINISMis a deficit or absence of pigme ...

N–O nails The hardened epidermal layer covering the top surfaces of the tips of the fingers and toes. Nails are made of cornifie ...

Beau’s lines: indentations in the nail surface that extend across the width of all the nails at about the same position on each ...

areas where clothing rubs them. The resulting SCARmay require PLASTIC SURGERYfor the desired cosmetic appearance, depending on t ...

P papilloma A general classification of tumors arising from the epidermis (outer layer of the SKIN) as well as the epithelial la ...

small punctures they make through the skin. Lice attach their eggs, called nits, to HAIRshafts. Of the numerous species of lice, ...

carefully follow the label directions for the prod- uct and to leave the product on the hair or skin for the instructed length o ...