摘要
目的 :探讨慢性化脓性中耳炎胆固醇肉芽肿的发病机制 ,临床及影像学的诊断与鉴别。方法 :对 6例经手术和病理证实的、继发于慢性化脓性中耳炎的胆固醇肉芽肿患者的病例资料进行分析。结果 :胆固醇肉芽肿可与多种中耳疾病同时存在 ,MRI检查 T1 W与 T2 W皆为高信号。结论 :胆固醇肉芽肿的发病机制为中耳的其它疾病如胆脂瘤、硬化灶等导致的通气受阻 ,仅凭 CT及临床体征不能区别胆固醇肉芽肿与胆脂瘤 ,MRI对本病诊断有极大的价值。
Objective:To investigate the pathophysiological mechanism,clinical menifestation and radiographic diagnosis of cholesterol granuloma following chronic supperative otitis media.Method:Six cases of CG following chronic suppurative otitis media, confirmed by surgery and pathology,were reviewed and analyzed.Result:CG frequently accompanied with other middle ear diseases,and was shown as a high signal intensity on both T1 and T2 weighted images in magnetic resonance imaging(MRI).Conclusion:It was postulated that the obstruction of pneumatized temporal bone air cells,caused by other middle ear diseases such as cholesteatoma and tympanosclerosis,might be the pathophsiological mechanism of CG.The evaluations of computed tomography(CT) and clinical manifestation were limited to distinguish CG from cholesteatoma or other neoplasm,while the MRI can be of great value to characteristic diagnosis.
出处
《临床耳鼻咽喉科杂志》
CSCD
北大核心
2001年第2期64-65,共2页
Journal of Clinical Otorhinolaryngology
