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MR of primary extraosseous Ewing sarcoma

K Allam¹, G Sze

¹Department of Diagnostic Radiology, Yale University School of Medicine, New Haven, Conn. 06510.

AJNR. American Journal of Neuroradiology

|February 1, 1994

Summary

We describe MR imaging of a rare extraosseous Ewing sarcoma in a teen with back pain. This tumor extended into the spinal epidural space, affecting nearby structures.

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Area of Science:

Radiology
Oncology
Pediatric Imaging

Background:

Extraosseous Ewing sarcoma is a rare primary bone tumor.
Spinal involvement presents diagnostic challenges.

Observation:

A 15-year-old female presented with chronic back pain.
Biopsy confirmed primary extraosseous Ewing sarcoma.

Findings:

MR imaging revealed tumor extension into the spinal epidural space.
Adjacent structures were involved, with foraminal encroachment.

Implications:

Highlights the importance of MR imaging in diagnosing spinal tumors.
Emphasizes the need to consider rare diagnoses in pediatric back pain.