Do you know what is Acanthosis Nigricans?

Do you know what is Acanthosis Nigricans?

General Discussion Acanthosis nigricans (AN) is a skin condition characterized by abnormally increased coloration (hyperpigmentation) and “velvety” thickening (hyperkeratosis) of the skin, particularly of skin fold regions, such as of the neck and groin and under the...
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