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  1. Dermatology: Acanthosis Nigricans, Back Of Neck

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    Description: Acanthos nigricans is a circumscribed melanosis consisting of a brown-pigmented, velvety verrucosity or fine papillomatosis appearing in the axillae and other body folds. It occurs in association with endocrine disorders, underlying malignancy, administration of certain drugs, or as an inherited disorder.
    Keywords: skin pigment, melanosis, back of neck, darkened skin, velvet, folds