Science Fair Project Encyclopedia
Acanthosis nigricans
Acanthosis nigricans is a brown to black, poorly defined, velvety hyperpigmentation of the skin, usually present in the posterior and lateral folds of the neck, the axilla, groin, umbilicus, and other areas.
The most common cause would be insulin resistance, usually from type 2 diabetes mellitus. Other causes are familial, obesity, drug-induced , malignant (gastric cancer) and idiopathic.
People with acanthosis nigricans should be screened for diabetes.
Last updated: 10-26-2005 11:28:15
10-26-2009 08:16:03
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details


