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Pigment that darkens the skin; the pigment-secreting cells are stimulated by ultraviolet radiation (e.g., "tanning")
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Melanin
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Condition in which no melanin is secreted
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Albinism
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Loss of pigment in the skin that creates patches of white skin
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Vitiligo
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Melanin is concentrated in local areas; benign
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Freckles
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Highly malignant form of skin cancer that arises from melanocytes
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Melanoma
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Substance that gives persons of Asian descent a slight yellowish skin coloring
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Carotene
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Caused by vasodilation of the dermal blood vessels
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Flushing
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Caused by vasoconstriction of the dermal blood vessels
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Pallor
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Condition in which the skin has a bluish tint caused by a diminished amount of oxygen in the blood
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Cyanosis
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Color change caused by hypoxemia
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Cyanosis
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Hair loss
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Alopecia
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Yellowing of the skin caused by an accumulation of bilirubin in the skin
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Jaundice
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Described as ashen
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Cyanosis
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