DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Eczema and pigment loss. Light patches of skin seen on the arms of a 13 year-old girl caused by a loss of pigment after eczema inflammation. Melanin is a brown or black pigment produced by skin cells (melanocytes). Attacks of eczema can caused a loss of the skin's melanin resulting in such light patches. Eczema is an inflammation of the skin causing itching, scaling, and sometimes blisters. It may be an allergy but can occur for no apparent reason.
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