表皮样囊肿约占颅内肿瘤的0.7％～2％,多发生在脑基底部蛛网膜下腔,顺应蛛网膜下腔的形状向周围生长是其重要特点之一。本文报告6例骑跨型桥小脑角表皮样囊肿,病变原发于桥小脑角,跨越岩骨尖,向幕上伸展进入中颅凹。就其临床特点和诊断治疗等有关问题进行讨论。 临床资料 一、一般资料:1982～1992年我院收治经手术和病理证实的骑跨型桥小脑角表皮样囊肿6例。男 Epidermoid cyst accounts for about 0.7% to 2% of intracranial tumors, mostly in the subarachnoid space at the base of the brain. Following the shape of the subarachnoid space, it is one of its important features. This article reports 6 cases of riding-type bridge of the cerebellar angle epidermoid cyst, the lesion primary in the cerebellopontine angle, across the petrous apex, stretching to the screen into the middle fossa. On its clinical features and diagnosis and treatment and other related issues to be discussed. Clinical data First, the general information: 1982-1992 admitted to our hospital by surgery and pathology confirmed riding-type bridge of the cerebellar angle epidermoid cyst in 6 cases. male