临床上以进行性颅内压增高为主要表现、貌似肿瘤的后颅窝血管畸形比较少见,国内尚未见有单独报道。现将我院经病理及/或手术证实的3例报告于下。例1.男,20岁。因渐进性头昏、头痛伴视物成双四个月,于1984年11月住院。四月前无明显诱因突感头昏、前额部疼痛伴恶心、呕吐。后逐渐出现视物成双,以俯视和平视远物时明显。病前无发热及头部外伤史。检查:神清,发育良好。双眼视乳头境界模糊,静脉增粗。右眼下视活动受限、复 Clinically increased intracranial pressure as the main performance, seemingly tumor posterior fossa vascular malformations are relatively rare, have not seen a separate report. Now in our hospital by pathology and / or surgery confirmed in 3 cases reported below. Example 1. Male, 20 years old. Due to progressive dizziness, headache accompanied by visual acuity for four months, in November 1984 hospitalization. There was no obvious cause of apocalypse four months ago, dizziness, pain in the forehead with nausea and vomiting. Gradually appear as a double as the object, with peace and long-term perspective as obvious. No fever and head trauma before the disease history. Check: God clear, well-developed. Binocular vision of the nipple fuzzy, venous thickening. Right eye activity is limited, complex