Vitiligo is an acquired pigmentary disorder of the skin and mucous membranes, and it is characterized by circumscribed depigmented macules and patches. Vitiligo is a progressive disorder in which some or all of the melanocytes in the affected skin are selectively destroyed. Vitiligo affects 0.5-2% of the world population, and the average age of onset is 20 years. (emedicine)

Image courtesy wikimedia commons Creative Commons Attribution-Share Alike 3.0 unported. Image by James Heilman, MD.

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