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Case Reports in Otolaryngology
Volume 2014, Article ID 715035, 5 pages
http://dx.doi.org/10.1155/2014/715035
Case Report

A Rare Presentation of Retiform Hemangioendothelioma in the External Auditory Canal

1Department of Otorhinolaryngology, Government Thiruvarur Medical College Hospital, Thiruvarur, Tamil Nadu 610004, India
2Department of Pathology, Government Thiruvarur Medical College Hospital, Thiruvarur, Tamil Nadu 610004, India
3Department of Pathology, Government Villupuram Medical College, Villupuram, Tamil Nadu 605601, India
4Dulbecco Telethon Institute and Division of Regenerative Medicine, San Raffaele Scientific Institute, 20132 Milan, Italy

Received 6 March 2014; Accepted 25 June 2014; Published 13 July 2014

Academic Editor: Wolfgang Issing

Copyright © 2014 Ezhil Arasan Jothi 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

Retiform hemangioendothelioma is a rare intermediate or borderline neoplasm of the blood vessels that mostly occurs in extremities. Here we report a unique case of retiform hemangioendothelioma presented in the external auditory canal. 58-year-old male patient presented with the complaint of right ear swelling for 4 years. On examination, a spherical swelling in the right ear was found occluding the view of external auditory canal. The tumor was removed surgically. Intraoperatively, the mass was found attached to the outer part of the right external auditory canal near the root of helix. Histopathology of the resected tumor showed typical features of retiform hemangioendothelioma. In addition, immunohistochemical analysis revealed that tumor was positive for endothelial cell marker CD34 and occasionally positive for cell proliferative marker Ki-67.