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Case Reports in Radiology
Volume 2013, Article ID 825078, 4 pages
Case Report

A Case of Pelvic Schwannoma Presenting Prominent Eggshell-Like Calcification

Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City 812-8582, Japan

Received 10 August 2013; Accepted 18 September 2013

Academic Editors: B. J. Barron, K. Fujimoto, L. Lampmann, and D. P. Link

Copyright © 2013 Takaaki Nakashima 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.


Pelvic schwannoma typically forms a large, well-circumscribed mass in the retroperitoneum or presacral area and frequently undergoes cystic degeneration. It appears as a well-demarcated round or oval mass, often showing prominent cystic degeneration and calcification. Characteristics of these calcifications are punctate, mottled, or curvilinear and are seen along the walls of the mass. Herein, we describe a case of schwannoma presenting a huge pelvic mass with unique eggshell-like calcification.