SUPRATENTORIAL ARACHNOID CYSTS - CLINICAL AND THERAPEUTIC REMARKS ON 46 CASES

The authors report 46 cases of primary supratentorial arachnoid cysts. Thirty-two patients presented with symptomatic arachnoid cysts, which act as space-occupying lesions and were surgically treated by fenestr ation. 14 patients presented with a scarsity of symptoms; for this rea son they were kept under control by periodical neuroradiological exami nation. After a long follow-up period (median 11 years), 97% of the op erated patients presented neurological improvement and a decrease in t he size of the cyst; none of the patients who were not operated on sho wed any variation in either neurological status or size of the cyst. T he authors discuss their findings in the light of the published papers .