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I.はじめに
脊髄髄内神経鞘腫は稀で,現在までにわれわれの渉猟し得た限りでは23例の報告が認められるのみである.今回われわれはTh6以下の脊髄横断症状を示し,ミエログラフィー,ミエロCTにて脊髄空洞症と思われた症例にNMR検査を施行し,これによりTh7-8の髄内腫瘍と診断,手術的に全摘し良好な結果を得た胸髄髄内神経鞘腫の1例を経験したので,若干の文献的考察を加えて報告する.
Intramedullary schwannoma without evidence ofvon Recklinghausen's disease is extremely rare. Only23 cases have been reported in the literature.
A 42-years-old woman with transverse type myelo- pathy at the level of Th 6, was referred to our de-partment. Myelography showed diffuse swelling of the thoracic cord. Delayed myelo CT scan revealed the existence of syrinx at C 6 and Th 10 spinal cord level. On NMR spin echo image, high intensity signal with an ovoid shape was visualized in Th spinal cord parenchyma and the syrinx was verified below the level of C 5.
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