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An Intramedullary Osteolipoma of the Upper Thoracic Spinal Cord

A Case Report

Kojima, Kota, MBBS, BSc1,a; Iwanami, Akio, MD, PhD1; Mikami, Shuji, MD, PhD1; Ishii, Ken, MD, PhD1; Matsumoto, Morio, MD, PhD1; Nakamura, Masaya, MD, PhD1,b

doi: 10.2106/JBJS.CC.16.00025
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Disclosures

Case: We present a rare case of an intramedullary osteolipoma without any extramedullary connections or coexisting spinal dysraphism. A 48-year-old woman presented with back pain and pain around the lateral aspect of the left thigh. Magnetic resonance imaging (MRI) revealed a heterogeneous hyperintense and hypointense region on T1 and T2-weighted imaging. A cavernous hemangioma was suspected, and the patient was admitted for surgical resection. The histological diagnosis was an intramedullary osteolipoma.

Conclusion: MRI with fat suppression and computed tomography are recommended for the diagnosis of an intramedullary osteolipoma, but a definitive diagnosis requires histological examination.

1Departments of Orthopedic Surgery (K.K., A.I., K.I., M.M., and M.N.) and Pathology (S.M.), Keio University School of Medicine, Tokyo, Japan

aE-mail address for K. Kojima: dr.kota.kojima@keio.jp

bE-mail address for M. Nakamura: masa@a8.keio.jp

Copyright © 2016 by The Journal of Bone and Joint Surgery, Incorporated
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