Cutaneous Angiomyolipoma of the Ear: A Case Report and Literature Review

Abstract: Cutaneous angiomyolipoma is a rare mesenchymal tumor, distinct from its renal counterpart. Only few cases have been reported in English language literature to date. Here, we report a case in a 36-year-old man who presented with a painless swelling on his right ear. Microscopy revealed a well-circumscribed tumor, composed of an admixture of mature adipocytes, blood vessels, and bundles of smooth muscles. The tumor cells were positive for desmin and calponin but negative for HMB45, melan-A, SOX10, tyrosinase, and CD10. We present the case to emphasize the uniqueness of cutaneous angiomyolipoma from its renal counterpart. We also review the relevant literature on this topic. Correspondence: Abul Ala Syed Rifat Mannan, MBBS, MD, Department of Pathology, Johns Hopkins Medical Institutions, Weinberg Building, Room 2242 401 North Broadway, Baltimore, MD 21224 (e-mail: mannanrifat03@gmail.com). The authors declare no conflicts of interest. Copyright © 2018 Wolters Kluwer Health, Inc. All rights reserved.

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