Lunardi P, Missori P
Department of Neurological Sciences, Neurosurgery, University of Rome La Sapienza, Italy.
Acta Neurochir (Wien). 1991;113(3-4):125-30. doi: 10.1007/BF01403197.
Epidermoid cysts may occur simultaneously above and below the tentorium. Eleven patients with involvement of both infra- and supra-tentorial cisterns are presented. In two cases the epidermoid, located mainly in the cerebello-pontine angle, spread into the middle cranial fossa; in three the epidermoid extended from the parasellar cisterns to the posterior cranial fossa; in six patients the epidermoid, enlarging the tentorial notch, occupied extensively both cranial fossae. The surgical approach was influenced both by the experience of the surgeon and by the main extension of the epidermoid. Total removal was feasible in two patients only but only one of the eleven patients had a recurrence of the epidermoid. The long term results appear to be unrelated to the size of the epidermoid and to the choice of approach.
表皮样囊肿可同时发生于小脑幕上下。本文报告11例幕下和幕上脑池均受累的患者。2例表皮样囊肿主要位于桥小脑角，蔓延至中颅窝；3例表皮样囊肿从鞍旁脑池延伸至后颅窝；6例表皮样囊肿扩大了小脑幕切迹，广泛占据了两个颅窝。手术入路既受术者经验的影响，也受表皮样囊肿主要延伸方向的影响。仅2例患者可行全切，但11例患者中只有1例表皮样囊肿复发。长期结果似乎与表皮样囊肿的大小及手术入路的选择无关。
