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Case Reports in Dermatological Medicine
Volume 2012 (2012), Article ID 158158, 3 pages
http://dx.doi.org/10.1155/2012/158158
Case Report

Keratoacanthoma Centrifugum Marginatum with Atypical Scar

Department of Dermatology, IPGMER & SSKM Hospital, kolkata 700020, India

Received 29 September 2012; Accepted 7 November 2012

Academic Editors: J.-H. Lee and G. E. Piérard

Copyright © 2012 Falguni Nag et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Keratoacanthoma centrifugum marginatum (KCM) is a rare variant of keratoacanthoma (KA). It is characterized by a progressive peripheral expansion and central healing leaving atrophic scar. It is sometimes confused with squamous cell carcinoma (SCC) both clinically and histopathologically. We here report a case of KCM over the extensor aspect of the right forearm in a 57-year-old man with an abnormal looking scar.