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Case Reports in Dermatological Medicine
Volume 2016, Article ID 9067428, 3 pages
http://dx.doi.org/10.1155/2016/9067428
Case Report

Cutaneous Squamous Cell Carcinoma with Invasion through Ear Cartilage

Department of Dermatology, University of Texas Medical Branch, Galveston, TX 77550, USA

Received 3 February 2016; Accepted 27 April 2016

Academic Editor: Tak-Wah Wong

Copyright © 2016 Julie Boisen 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

Cutaneous squamous cell carcinoma of the ear represents a high-risk tumor location with an increased risk of metastasis and local tissue invasion. However, it is uncommon for these cancers to invade through nearby cartilage. Cartilage invasion is facilitated by matrix metalloproteases, specifically collagenase 3. We present the unusual case of a 76-year-old man with an auricular squamous cell carcinoma that exhibited full-thickness perforation of the scapha cartilage. Permanent sections through the eroded cartilage confirmed tumor invasion extending to the posterior ear skin.