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Totally ossified metaplastic spinal meningioma
Chang Il Ju1, Kazutoshi Hida, Tomohiro Yamauchi
1Department of Neurosurgery, Hokkaido University, Sapporo, Japan. ; Department of Neurosurgery, School of Medicine, Chosun University, Gwangju, Korea.
Journal of Korean Neurosurgical Society
|November 27, 2013
Summary
A rare case of a totally ossified spinal meningioma causing myelopathy was successfully surgically removed. This highlights surgical and pathological considerations for this rare spinal tumor.
Area of Science:
- Neurosurgery
- Spinal Oncology
- Pathology
Background:
- Spinal meningiomas are rare tumors, with ossified metaplastic meningiomas being exceptionally uncommon.
- This case presents a large, completely ossified intradural extramedullary meningioma at the T9-T10 level causing progressive myelopathy.
Observation:
- Computed tomography (CT) revealed a large, ossified mass occupying the spinal canal.
- Magnetic resonance imaging (MRI) demonstrated a T9-T10 intradural extramedullary mass, hypointense on T1/T2 sequences with partial Gadolinium enhancement.
- Severe spinal cord compression and displacement were noted at the T9-T10 level.
Findings:
- Surgical removal was successfully performed via a posterior midline approach.
- Histological diagnosis confirmed an ossified metaplastic meningioma.
- The patient experienced significant improvement in neurological symptoms postoperatively.
Implications:
- This case underscores the importance of considering rare variants like ossified metaplastic meningiomas in the differential diagnosis of spinal tumors.
- Successful surgical resection can lead to favorable neurological outcomes.
- Further understanding of the surgical and pathological characteristics of these rare tumors is warranted.
