DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Vitiligo affecting a woman's feet. Also known as leucoderma, the condition involves a loss of skin pigmentation. The condition, which usually develops in early adulthood, is obviously more apparent in dark-skinned peoples. The lack of melanocytes which causes the condition is believed to result from an underlying autoimmune disorder. Treatment is generally unsatisfactory & is based upon cosmetic make-up. Phototherapy using PUVA (psoralen activated by UV-A light) is helpful in some cases, but many treatments are required. In very extensive cases, chemicals may be used to remove pigment from normal areas of skin.
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