Intraosseous Ganglion Cyst Mimicking Chondrosarcoma on MRI: a Case Report

Overview

Journal Eur J Med Res

Publisher Biomed Central

Specialty General Medicine

Date 2022 Jan 14

PMID 35027087

Authors

Eun Hye Seo

Yu Sung Yoon

Jang Gyu Cha

Hee Kyung Kim

Affiliations

Soon will be listed here.

Abstract

Background: The intraosseous ganglia is a benign cyst, rarely locate in the olecranon process. As intraosseous ganglia can mimic malignant bone tumor, computed tomography (CT) is important for diagnosis even when magnetic resonance imaging (MRI) suggests malignant bone tumor, such as chondrosarcoma.

Case Presentation: In this paper, we report a 42-year-old woman with intraosseous ganglia in the olecranon process of the ulna. She complained pain in right elbow for 3 weeks. MRI revealed an intraosseous mass which initially diagnosed as chondrosarcoma. However, followed computed tomography (CT) demonstrated scattered intralesional gas and no underlying mineralization, and we can exclude chondrosarcoma from diagnosis.

Conclusions: The intraosseous ganglia can mimic bone tumor in MRI; therefore, CT is essential for accurate characterization of bone tumor. Even if MR imaging strongly suggests chondrosarcoma of the bone, CT should be performed as additional study.

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