Dark underarms may simply have to do with pigmentation and levels of melanin in the skin. But sometimes armpit discoloration ...

How do dermatologists diagnose acanthosis nigricans? A dermatologist can diagnose acanthosis nigricans (AN) by looking at your skin. If your dermatologist diagnoses you with AN, you may need a blood ...

Acanthosis nigricans (ah-kan-THO-sis NY-gruh-kans) is a skin condition. It causes thicker and darker patches or streaks, usually in skin creases and folds, such as the sides and back of the neck, ...

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 (pronounced: ah-kan-THO-sis NY-gruh-kans) is a skin condition. It causes thicker and darker patches or streaks, usually in skin creases and folds, such as the sides and back of ...

Dermatologists should be aware of this rare presentation in order to establish a prompt diagnosis and treatment of the underlying malignancy. Malignant acanthosis nigricans (MANs) and tripe palms are ...