眼窩部痛にて発症した脳室内Arachnoid Cyst—症例報告と文献的考察

Intraventricular Arachnoid Cyst Appearing with Attacks of Orbital Pain: Case report and review of the literature

I．はじめに

　脳室内にarachnoid cystが存在したという報告はきわめて少ない．今回われわれは，右眼窩部痛発作を主訴とした，右側脳室前角部のarachnoid cystを経験したので文献的考察を加えて報告する．

While there have been 5 cases of intraventricular arachnoid cyst published in the literature, the occur-rence in the anterior horn of the lateral ventricle has not been reported. We report a case of intraventricular arachnoid cyst of the anterior horn causing attacks of orbital pain.

A 30-year-old man was admitted with frequent attacks of orbital pain on his right side. Neurological examination revealed no abnormality. Plain CT showed a cystic dilatation of the anterior horn of the right later-al ventricle, and enhanced CT showed a deviation of the septal veins to the left side.