Skin color can be categorized according to whether it is hypopigmented (lighter than normal skin) or hyperpigmented (darker than normal skin). Pigmentation can be melanin- related or not melanin-related. We consider here only color changes; pigmented tumors, both benign and malignant, are considered in Chapters 20 and 21.
KeywordsTyrosine Arsenic Bismuth Dermatitis Nism
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