胆脂瘤型中耳炎HRCT评价

目的　探讨HRCT在胆脂瘤型中耳炎诊断中的应用价值。方法　经手术病理证实胆脂瘤型中耳炎 2 6例 ,回顾性分析其HRCT表现 ,并与手术结果对照分析。结果　胆脂瘤型中耳炎HRCT主要表现 :上鼓室、鼓窦及乳突区软组织肿块 (10 0 % ,2 6 2 6) ,常伴有骨质破坏 ,其中包括听骨破坏 (92 % ,2 4 2 6)、盾板破坏 (4 6% ,12 2 6)、面神经管破坏 (5 4% ,14 2 6)、乙状窦壁破坏 (7.7% ,2 2 6)。中耳窦腔扩大 ,骨缘硬化。并有颅内并发症 ,其中包括颞叶脓肿 (1例 )、耳源性脑膜炎 (1例 )。结论　HRCT对胆脂瘤型中耳炎有肯定诊断价值 ,对临床有重要指导意义

HRCT Evaluation of Cholesteatomatous Tympanitis

Objective To assess the clinical value of HRCT in diagnosis of cholesteatomatous tympanitis.Methods HRCT findings of 26 patients with cholesteatomatous tympanitis proved by surgery and pathology were analyzed.Results HRCT findings of cholesteatomatous tympanitis included:soft tissue mass in the superior tympanium,tympanal sinus and mastoid(100%,26/26),destruction of the bone includeing ossicles chain (92%,24/26),secutum(46%,12/26),facial nerve canal (54%,14/26);enlargement of the tympaniosinus with sclerosing borders;intracranial complications including temple abscess(1 case),meningitis(1 case).Conclusion HRCT is of great value in diagnosis of cholesteatomatous tympanitis.