CAJ | 학술논문

目的：探讨中耳胆脂瘤的高分辨率 CT（HRCT）盾板表现，评价盾板破坏在中耳胆脂瘤的诊断价值。方法选择经手术及术后病理确诊的中耳胆脂瘤患者38例（42耳）为研究对象，分析其 HRCT 影像资料。结果38例（42耳）中耳胆脂瘤患者中发生盾板破坏37耳，盾板完整、鼓膜松弛部穿孔或紧张部穿孔4耳，鼓膜完整1耳。结论盾板破坏是诊断中耳胆脂瘤的特征性 CT 征象，诊断特异性强、敏感性差。部分中耳胆脂瘤患者，颞骨 CT盾板可表现为完整。
목적：탐토중이담지류적고분변솔 CT（HRCT）순판표현，평개순판파배재중이담지류적진단개치。방법선택경수술급술후병리학진적중이담지류환자38례（42이）위연구대상，분석기 HRCT 영상자료。결과38례（42이）중이담지류환자중발생순판파배37이，순판완정、고막송이부천공혹긴장부천공4이，고막완정1이。결론순판파배시진단중이담지류적특정성 CT 정상，진단특이성강、민감성차。부분중이담지류환자，섭골 CT순판가표현위완정。
Objective To evaluate erosion of scutum in the diagnosis of middle ear cholesteatoma by high-resolution CT scan(HRCT).Methods HRCT findings of 38 patients(in 42 ears)with middle ear cholesteatoma in our department were reviewed.The condition of the scutum was observed with CT scanning and surgical findings.Result There are 37 ears with erosion of scutum,4 ears with marginal/central perforation and 1 ear with intact tympanic membrane. Conclusion Scutum erosion demonstrates an important role in the diagnosis of cholesteatoma of middle ear,however, this sign cannot be found in some patienas with cholesteatoma.