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目的分析卵巢畸胎瘤超声漏诊、误诊的原因,旨在提高对畸胎瘤的诊断率。方法通过对238例经手术、病理证实的卵巢畸胎瘤中28例超声误诊、漏诊的病例进行回顾性分析。结果238例中28例漏、误诊,其诊断符合率为88%。误、漏诊率为12%。其误诊声像图可表现为以下几类:(1)单房囊块,内液清,6例;(2)单房或多房囊块,内液稠,6例;(3)单房囊块,囊壁呈毛刺状或局部有强回声突起3例;(4)囊实混合性包块4例;(5)强回声团3例;(6)回声杂乱型3例;(7)漏诊3例。结论卵巢畸胎瘤由于特有的组织成分使之具有典型的声像图特征,但瘤体可表现出多样性和复杂性,易漏、误诊,故检查时应仔细观察包块的微细结构以提高准确性。
Objective To analyze the causes of misdiagnosis and misdiagnosis of ovarian teratoma in order to improve the diagnosis rate of teratoma. Methods A retrospective analysis of 28 cases of misdiagnosis and missed diagnosis of ovarian teratoma confirmed by operation and pathology was performed in 238 cases. Results Of 238 cases, 28 cases were missed or misdiagnosed, and the diagnostic coincidence rate was 88%. Misdiagnosis, missed diagnosis rate of 12%. The misdiagnosis sonogram can be expressed as the following categories: (1) single-chamber capsule, clear liquid, 6 cases; (2) single or multiple atrial capsule mass, thick liquid in 6 cases; (4) cystic mixed mass in 4 cases; (5) hyperechoic mass in 3 cases; (6) echogenic disorder in 3 cases; (7) echogenic disorder in 3 cases; Misdiagnosis in 3 cases. Conclusion Ovarian teratoma has the typical features of sonography because of its unique tissue composition, but the tumor can show diversity and complexity, easy to leak and misdiagnosis, so the examination should carefully observe the microstructure of the mass to improve accuracy.