胸椎硬膜外に発生した良性間葉腫の 1 例

概要

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We report a unique case with thoracic extradural mesenchymoma. A sixty-three-year old male had complained of progressive gait disturbance due to motor weakness and sensory disturbance under Th 5 level. Computed tomography showed an ossifying lesion in the thoracic spinal canal with slight osteoclastic change in the lamina. Magnetic resonance images (MRI) revealed an ellipsoid tumor at the level of Th 5 and Th 7 which appeared buried in the thoracic epidural adipose tissure. The tumor was compressing the thoracic cord anteriorly. We performed Th 4-Th 8 osteoplastic laminotomy and achieved total resection of the ossified tumor. The pathological findings indicated hamartomatous and mesenchymal characteristics, which contained fat tissue, bone trabeculae, fibrous tissue, and haematopoietic tissue. Benign mesenchymomas in the spine are extremely rare and have a high recurrent rate of about 20% in the literature. The treatment of choice is the total resection followed by long-term clinical follow-up.
日本脊髄外科学会の論文
2001-07-31