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Ossifying Fibromyxoid Tumor with Spinal Cord Compression and Epiduritis

Authors:

Tessa De Wandeler,

Department of Medical Imaging, CHU Saint-Pierre, Université Libre de Bruxelles, Brussels, BE
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Dirk Van Gestel,

Department of Radiotherapy-oncology, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, BE
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Patrice Jissendi Tchofo

Department of Medical Imaging, CHU Saint-Pierre, Université Libre de Bruxelles, Brussels, BE
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How to Cite: De Wandeler T, Van Gestel D, Jissendi Tchofo P. Ossifying Fibromyxoid Tumor with Spinal Cord Compression and Epiduritis. Journal of the Belgian Society of Radiology. 2019;103(1):18. DOI: http://doi.org/10.5334/jbsr.1606
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  Published on 28 Feb 2019
 Accepted on 20 Jan 2019            Submitted on 17 Jul 2018

Case

A 37-year-old female was assessed for a slowly growing right cervical mass. The mass was an asymptomatic nodule at the beginning but gave rise to neck and right upper limb pain 3–4 months later. The patient showed a swollen right upper limb with complete loss of motor function but preserved sensory function. Contrast-enhanced computed tomography (CECT) (Figure 1) revealed a soft tissue mass in tight contact with the right trapezius muscle, containing a central dysmorphic calcification. The mass is enhancing as the adjacent muscles with poor delineation with the trapezius as seen on axial (C) and sagittal (F) contrast-enhanced CT images (arrows). Shortly after, the lesion was surgically removed. Almost two years later, a control CECT (Figure 2) showed a large contrast-enhanced mass containing multiple scattered calcifications (A–E, arrows), extending into the paravertebral muscles (F, long arrow), towards the spinal canal and the foramina, with multifocal epidural invasion, compression of the spinal cord and nerve roots (F, short arrows) and elsewhere, thrombosis of the superior vena cava (G, arrow), all consistent with an extensive tumor recurrence. Unfortunately, the multiple recurrences were unsuccessfully managed by repeated surgery, radiotherapy and chemotherapy. Histopathology (Figure 3) showed typical features of ossifying fibromyxoid tumor (OFMT) with bony component.

Figure 1 
Figure 2 
Figure 3 

Comment

Ossifying fibromyxoid tumor (OFMT) is a rare soft tissue tumor of uncertain differentiation and malignancy [1]. OFMT mostly occurs in patients in their fifties with a slight male predilection. Extremities are mostly affected. OFMT shows variable histopathologic features and multiple subtypes have been described. OFMT can contain bone, osteoid and collagen elements. Radiographic features of OFMT are non-specific. It may present as a nodular soft tissue mass and in 60–70% of cases, a peripheral rim of ossification or “bone shell” can be seen. Underlying bone may be eroded or may show features of periosteal reaction. The treatment of choice is a large surgical resection of the lesion, along with a close follow-up, depending on the microscopic subtype. Recurrence is not rare, with thus a bad prognosis.

Acknowledgements

The authors wish to thank Nicolas De Saint Aubain for the histopathology images.

Competing Interests

The authors have no competing interests to declare.

References

  1. Bakiratharajan, D and Rekhi, B. Ossifying Fibromyxoid Tumor: An Update. Arch Pathol Lab Med. 2016; 140: 371–375. DOI: https://doi.org/10.5858/arpa.2014-0590-RS 

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