脊髄硬膜より発生したmesenchymal chondrosarcomaの1例

A Case of Mesenchymal Chondrosarcoma originating from Spinal Dura

Ⅰ．緒言

　小児に原発性脊髄腫瘍が発生することは比較的稀で^4），その組織像からみた発生頻度は成人と異なる傾向を有している．すなわち，神経膠腫，神経芽細胞腫，類上皮腫，皮様嚢胞が多いといわれている^10）．われわれは，10歳女児の胸髄硬膜より発生したきわめて稀なmesenchylnal chondrosarcoma（間葉性軟骨肉腫）を経験したのでここに報告し，あわせて文献的考察を加える．

A rare case of mesenchymal chondrosarcoma originating from the thoracic spinal dura was reported. A 10-year-old girl complained of paresis of the right leg in June 1977. Then she became unable to walk early in August, and a complete paraparesis developed on August 18. She was admitted to our department on August 22. On admission she had complete paraparesis, bilateral anlde clonus, upward plantar reflexes, sensory disturbance below T7, shincter disturbance and neck stiffness. Plans thoracic X-ray revealed bilateral decalcification of pedicles of T6. Myodil myelography showed a complete block between T6 and lower end of T7 vertebrae.