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Case Reports in Urology
Volume 2015 (2015), Article ID 728062, 5 pages
http://dx.doi.org/10.1155/2015/728062
Case Report

Giant Abdominoperineal Malignant Schwannoma: An Unusual Presentation and Surgical Challenge

1Department of Urology, PGIMER, Chandigarh 160012, India
2Department of Pathology, PGIMER, Chandigarh 160012, India

Received 10 December 2014; Accepted 6 March 2015

Academic Editor: Giorgio Carmignani

Copyright © 2015 Pankaj Panwar 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

Schwannoma is a benign tumor arising from the Schwann cells of peripheral nerves. These are usually benign but malignant transformation can occur in larger lesions. The definitive diagnosis of malignancy can only be made after final histopathological report. The literature reports large pelvic and perineal schwannomas with few being malignant. We report the first case of such giant malignant abdominoperineal schwannoma which was benign on initial biopsy but final histopathology revealed it to be malignant. In view of proximity of perineal and pelvic tumors to urogenital organs and pelvic nerves, such cases represent a challenge to surgical excision. This case brings to highlight another atypical presentation of such tumors.