脊髄硬膜内くも膜のう胞の臨床像

Clinical Study of Spinal Intradural Arachnoid Cyst

I．はじめに

　脊髄硬膜内くも膜のう胞が主病変として発症することは珍しい．われわれは外科療法，保存療法の各1例を経験したので，この症例を報告するとともに過去の報告80例を検討し本疾患の臨床像，治療法を求めた．

Spinal intradural arachnoid cysts (S-IAC) are rarely found and only 80 cases have been reported since 1915. We report two of them: A 68-year-old male had slowly progressive dull pain in both thighs for about 6 years prior to admission. Neurological ex-amination and plain x-ray on admission showed no abnormality. Myodil^R myelography showed a S-IAC at T₄ vertebral level. Surgical treatment of cyst wall excision resulted in success. The other case, a 39-year-old male suddenly noticed monoparesis and sensory disturbance of left leg in the morning.