J Korean Soc Spine Surg.  2009 Dec;16(4):294-298. 10.4184/jkss.2009.16.4.294.

Surgical Treatment of Ossifying Fibromyxoid Tumor Invading the Lumbar Spine: A Case Report

• Lee CS
• Chung SS
• Oh SK

• KMID: 1819812
• DOI: http://doi.org/10.4184/jkss.2009.16.4.294

Abstract

Ossifying fibromyxoid tumor is rare soft tissue neoplasm of an uncertain histogenesis, and this was first described in 1989. The majority of the reported cases have involved the soft tissue of the extremities. We present here on a case of atypical ossifying fibromixoid tumor that had invaded the spine and we report on its management and outcome. We also review the relevant literature.

Keyword

Ossifying fibromyxoid tumor; Lumbar spine; Spinal invasion

MeSH Terms

Extremities
Soft Tissue Neoplasms
Spine

Figure

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  Fig. 1. Precontrast CT scan of level L5 vertebra revealed a large soft tissue mass measuring about 13cm in length invading the L5 vertebral body.

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  Fig. 2. (A) T2 weighted axial MR shows the mass is a heterogeneous and isointense to muscle. (B) T1 weighted coronal MR shows the mass is isointense with psoas muscle. (C) T2 weighted saggital MR shows the mass extend to the canal with epidural mass formation.

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  Fig. 3. (A) Immediate post operative lateral view. (B) 2nd Post operative lateral view. (C) Postoperative 6year last follow up lateral view.

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  Fig. 4. (A) The photomicrograph (×100, Hematoxylin-eosin stain) shows a well circumscribed mass with an incompletely ossified fibrous rim. Tumor cells are relatively uniform round to oval shape arranged in small rosettes that were separated by delicate hyalinized fibrous bend. (B) By Immunohistochemistry, the tumor cells are positive for S100.

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