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目的 探讨卵巢浆液性和黏液性囊腺瘤/癌的MRI表现,提高对卵巢囊腺类肿瘤的诊断及鉴别诊断.方法 回顾性分析24 例经病理证实的卵巢囊腺类肿瘤,对照病理结果分析肿瘤好发位置、大小、形态、内部结构等MR表现特征.结果 24 例患者27 个病灶,其中浆液性肿瘤16 例( 囊腺瘤7 例,囊腺癌7 例,交界性2 例),黏液性囊腺瘤6 例,浆黏液交界性肿瘤2 例.其中长径≤5 cm的7 例,＞5 cm的17 例,发生于单侧的21 例,双侧的3 例,囊性灶13 例,囊实性5 例,实性病灶6 例,病灶有分隔的18 例,壁结节6 例,伴发腹水16 例,合并子宫内膜异位症1 例.MRI诊断肿瘤的准确率为87.5%.结论 MRI能够提供卵巢囊腺瘤重要信息,对卵巢肿瘤的定性和定位诊断具有重要意义.但当肿瘤伴发出血等易误诊.“,”Objective To improve the diagnosis and differential diagnosis of ovarian serous cystadenoma, mucinous cystadenoma (cystadenocarcinoma) by analyzing the MRI features based on pathology. Methods MRI images of 24 patients with ovarian cystic adenoid tumor confirmed by pathology were analyzed retrospectively. The predilection site, morphology, shape, internal structure and MRI of tumors of all patients were analyzed in this research. Results Results of 24 cases, 27 lesions were found, including 16 serous tumors (cystadenoma 7 cases, cystadenocarcinoma 7 cases, borderline tumor 2 cases), 6 mucinous cystadenoma, 2 serous-mucinous mixed cystadenoma. There were 7 cases of long diameter ≤ 5 cm, 17 cases ＞ 5 cm, 21 cases in unilateral, 3 cases of bilateral, 13 cystic lesions, 5 cystic lesions, 6 cases of solid focus, 18 cases of septum, 6 cases of wall nodules, 16 cases with ascites, 1 case of endometriosis. As compared with pathological results, the accuracy rate of MRI diagnosis was 87.5%.Conclusion MRI has a good tissue resolution, can display tumor morphology and signal characteristics, and the relationship with surrounding tissue. It is of great significance for the qualitative and location diagnosis of ovarian tumors.