岩尖胆固醇肉芽肿系一种独立的疾病,可引起较多的脑神经损害,正确诊断需行颅脑C T检查,选择适当的手术能保留听力和其他脑神经功能。胆固醇肉芽肿系机体对异物——胆固醇结晶的一种非特异性组织反应,可发生于颞骨气房系统的任何部位,最常发生于胆脂瘤周围的乳突气房内。凡咽鼓管阻塞、慢性渗出性中耳炎等能使气房区阻塞不能与气化良好的岩尖相通的各种原因都可致病,因粘膜吸收空气,造成负压和缺氧,导致血液和血浆渗漏,组织坏死,血液和组织崩溃而释放胆固醇、含铁血黄素、纤维蛋白元和脂 Rock tip cholesterol granuloma is an independent disease that can cause more damage to the brain, the correct diagnosis of brain C required CT examination, select the appropriate surgery to retain hearing and other brain function. Cholesterol granuloma is a non-specific tissue reaction of foreign body-cholesterol crystals that occurs in any part of the temporal system of the air sac, most commonly in the mastoid space surrounding cholesteatoma. Where eustachian tube obstruction, chronic exudative otitis media and other obstructions can make the air chamber area can not communicate with the gasification of the rock tip can cause a variety of reasons, due to mucosal absorption of air, resulting in negative pressure and hypoxia, leading to blood And plasma leakage, tissue necrosis, blood and tissue breakdown and release of cholesterol, hemosiderin, fibrin and lipid