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Spinal epidural extraskeletal Ewing sarcoma: MR findings in two cases
1Department of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea.
AJNR. American Journal of Neuroradiology
|April 6, 2001
Summary
This study details CT myelography and MR imaging findings for two extraskeletal Ewing sarcoma cases affecting spinal epidural and paravertebral spaces. Imaging revealed spinal masses and foraminal widening, aiding diagnosis.
Area of Science:
- Radiology
- Oncology
- Neurosurgery
Background:
- Extraskeletal Ewing sarcoma is a rare malignant bone tumor.
- Spinal involvement necessitates accurate imaging for diagnosis and treatment planning.
Observation:
- Two cases of extraskeletal Ewing sarcoma involving spinal epidural and paravertebral spaces are presented.
- Patients included a middle-aged man and a young woman.
- Imaging characteristics were analyzed using CT myelography and MRI.
Findings:
- CT myelography demonstrated unilateral epidural and paravertebral masses with neural foraminal widening.
- MRI revealed masses isointense on T1-weighted, hyperintense on T2-weighted, and moderately enhancing post-contrast.
- Vertebral artery encasement and intradural tumor extension were observed in one case each.
Implications:
- CT myelography and MRI are crucial for diagnosing spinal extraskeletal Ewing sarcoma.
- Understanding imaging features aids in surgical planning and patient management.
- This case series contributes to the literature on rare spinal tumors.