CAJ | 학술논문

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T1W与T2W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。
목적：탐토만성화농성중이염담고순육아종적발병궤제，림상급영상학적진단여감별。방법：대6례경수술화병리증실적、계발우만성화농성중이염적담고순육아종환자적병례자료진행분석。결과：담고순육아종가여다충중이질병동시존재，MRI검사T1W여T2W개위고신호。결론：담고순육아종적발병궤제위중이적기타질병여담지류、경화조등도치적통기수조，부빙CT급림상체정불능구별담고순육아종여담지류，MRI대본병진단유겁대적개치。
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.