卵巢囊腺瘤的CT诊断

目的　分析卵巢囊腺瘤的CT表现 ,提高CT诊断的正确性。方法　收集经手术和病理证实的 5 7例 62个卵巢囊腺瘤 ,对其CT表现作回顾性分析。结果　 62个卵巢囊腺瘤中 ,浆液性 2 6例 3 1个肿瘤 ,黏液性 3 1例。 3 1个浆液性瘤中单房囊 19个、多房囊12个 ,分别占 61.3 %和 3 8.7% ;良性 2 2个 ,占 71.0 % ,交界性和 /或恶性变 9个 ,占 2 9.0 %。3 1例黏液性囊腺瘤中单房囊 3例、多房囊 2 8例 ,分别占 9.7%和 90 .3 % ;良性 2 3例 ,占 74.2 % ,交界性和 /或恶性变 8例 ,占 2 5 .8%。良性表现为光滑圆形或卵圆形薄壁囊 ,囊内分隔薄而规则 ;交界性或恶性变表现为厚而不规则的囊壁及囊内分隔 ,常见囊壁结节。浆液性和黏液性肿瘤的术前CT诊断准确率分别为 48.4%和 77.4%。结论　多房囊腺瘤具较典型CT表现 ,诊断不难 ;单房囊腺瘤缺乏特异表现 ,易与其他囊性病变混淆 ,CT明确诊断有一定限度

CT Diagnosis of Ovarian Cystadenoma

Objective To improve the diagnostic accuracy by analyzing the CT manifestations of ovarian cystadenoma .Methods The CT images of 57 patients with 62 ovarian cystadenomas proved by surgery and pathology were studied retrospectively . Results Of 62 ovarian cystadenomas, 26 cases with 31 tumors were serous,another 31 cases were mucinous . Unilocular and multilocular forms were seen respectively in 19(61.3%)and 12(38.7% ) of 31 serous cystadenomas, and in 3(9.7%)and 28(90.3%) of 31 mucinous cystadenomas.22 (71.0%) tumors were benign, and 9(29.0%)were of borderline and/or malignant transformation in 31 serous cystadenomas.23 (74.2%) tumors were benign, and 8 (25.8%) were of borderline and/or malignant transformation in 31 cases of mucinous cystadenomas.Benign cystadenomas were frequently round or oval cysts with thin regular wall and septa.Borderline or malignant transformation cystadenomas demonstrated predominately thick irregular wall or septa with projections.The overall preoperative accuracy of characterization was 48.4% in serous and 77.4% in mucinous cystadenomas.Conclusion Multilocular cystadenomas have the typical CT manifestations and CT is a high valuable procedure for imaging them, whereas unilocular cystadenomas, having similar CT findings with some other benign cystic lesions, are lack of enough characteristic features for CT correct characterization.