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Case Reports in Radiology
Volume 2014, Article ID 916935, 4 pages
http://dx.doi.org/10.1155/2014/916935
Case Report

Adult Intramedullary Ewing Sarcoma of the Proximal Hip

1Department of Radiology, Cooper University Hospital, Cooper Medical School of Rowan University, One Cooper Plaza B23, Camden, NJ 08103, USA
2Department of Pathology, Cooper University Hospital, Cooper Medical School of Rowan University, One Cooper Plaza B23, Camden, NJ 08103, USA
3MD Anderson Cancer Center at Cooper Orthopedic Oncology Center, Cooper University Hospital, Cooper Medical School of Rowan University, One Cooper Plaza, B23, Camden, NJ 08103, USA

Received 12 April 2014; Accepted 4 June 2014; Published 12 June 2014

Academic Editor: Samer Ezziddin

Copyright © 2014 Preetam Gongidi 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

Ewing sarcoma of bone is classically a permeative lesion in the diaphysis of long bones in children. While they occur primarily in children and adolescents, they can be seen in young adults in their 20s, but these are typically seen in flat bones. The permeative nature of the lesion can elicit new bone formation creating a partially sclerotic appearance, cortical expansion presenting as a “Codman triangle,” or have an “onion-skin” type of aggressive periosteal reaction/periostitis. Ewing sarcoma is rarely seen without an associated soft-tissue mass and is even rarer to just have benign-appearing periostitis (e.g., thick, uniform, or wavy cortex). We present such a case of Ewing sarcoma in a young adult confined to just the medullary metadiaphysis without cortical erosion or soft-tissue mass. To the best of our knowledge, this is the first case to be reported in the radiology literature.