Acanthosis nigricans can affect otherwise healthy people or can be associated with internal malignancy, endocrine abnormalities, or obesity. Some cases have a familial tendency. Acanthosis ...

Acanthosis nigricans (AN) is a skin condition characterized by dark, velvety patches, typically found in areas such as the neck, armpits, and groin. It is often associated with insulin resistance ...

I was transfixed, listening to her expand on what she called the “malignant” form of acanthosis nigricans. By that term, Helen meant the occurrence of hyperplastic skin on the neck ...