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02-05-2023, 11:09 PM
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Acanthosis Nigricans
Acanthosis nigricans is a medical sign characterized by ill-defined, velvety brown to black hyperpigmentation of the skin. It is usually found in the folds of the body, such as the posterior and lateral folds of the neck, armpits, groin, navel, forehead, and other areas. It is associated with endocrine dysfunction, especially insulin resistance and hyperinsulinemia, as seen in diabetes mellitus. |