Home | Recent Submissions | Search | Diagnosis | Quiz | Submit an Image | Index | Blog |About GSA
  
<< Back to Diagnosis Page  
Image Number 701 (Acanthosis nigricans)

 
Morphology:
Hyperpigmentation

Diagnosis: Acanthosis nigricans

Site: Groin adult

Sex: M

Age: 45

Type: Clinical

Description: Hyperpigmented velvety plaques

Submitted by: Shahbaz Janjua

View Full Size

Differential Diagnosis

History: Acanthosis nigricans is traditionally characterized by symmetrical, hyperpigmented, velvety plaques that may occur in almost any location but most commonly appear on the intertriginous areas of the axillae, groins, and posterior neck. Skin tags often are found in and around the affected areas.  Hyperinsulinemia, a consequence of insulin resistance, stimulates the formation of these characteristic plaques in obesity associated acanthosis nigricans.

Search DermNetNZ   eMedicine   PubMed   Dermatology Online   Archives   JAAD for "Acanthosis nigricans"

buy accutane
Home  |  Recent Submissions  |  Search  | Diagnosis  |  Quiz  |  Submit an Image  |  Index  |  About GSA

Copyright © 2005 Global Skin Atlas