卵巢纤维瘤的CT和MRI影像特征  

CT and MRI features of ovarian fibroma

作　　者：方金忠 陈本宝 张文奇 宋慧玲 李奎[3] 

机构地区：[1]舟山市妇幼保健院放射科,浙江舟山316000 [2]舟山市中医院放射科,浙江舟山316000 [3]浙江大学医学院附属妇产科医院放射科,浙江杭州310006

出　　处：《中国医学影像技术》2017年第9期1366-1370,共5页Chinese Journal of Medical Imaging Technology

摘　　要：目的探讨卵巢纤维瘤的CT及MRI特征。方法回顾性分析经手术病理证实的42例卵巢纤维瘤的CT及MRI资料,21例患者接受CT检查,26例接受MR检查,5例同时接受CT和MR检查,分析其CT和MR特征。结果42例卵巢纤维瘤中单纯型29例,变性型11例,特殊型2例。肿瘤均单发,呈圆形、类圆形或分叶状,边界清晰40例,部分边界模糊2例,伴钙化3例,出血1例。肿瘤最大径1.4~26.7cm,中位值5.5cm。单纯型CT平扫呈等密度,MRI上T1WI及T2WI均呈低信号;变性型CT呈斑片状、裂隙状低密度区,T2WI呈高信号,增强扫描肿瘤实质几乎无强化或仅轻微强化;特殊型1例内见大量出血,1例明显强化,均误诊为恶性肿瘤。结论卵巢纤维瘤的CT及MRI表现具有一定的特征,但确诊仍需依靠病理。Objective To investigate the CT and MRI features of ovarian fibroma.Methods CT and MRI findings of 42 patients with ovarian fibroma confirmed by operation and pathology were analyzed retrospectively.Twenty-one patients were examined by CT,26 cases was examined by MRI,and 5cases were examined by CT and MRI.Results In 42 cases of ovarian fibroma,there were simple type in 29 cases,degenerative type in 11 cases,and special type in 2cases.All the cases had single lesion,morphology were round or elliptic or lobulated,clear boundary in 40 cases,partial fuzzy boundary in2 cases,3cases with calcification,hemorrhage in 1case.The maximum tumor diameter were 1.4—26.7cm,median value was 5.5cm.Simple type of ovarian fibroma were equal density on CT,low signal on T1 WI and T2 WI.Degeneration type was patchy,fissure,low density areas on CT or high signal on T2 WI,and the tumor parenchyma was almost no enhancement or only slight enhancement.A large number of hemorrhages had been found in 1special type patient,and significantly enhanced in the other special type patient.Special type were misdiagnosed as malignant tumor.Conclusion CT and MRI performance of ovarian fibroma has some characteristics,but diagnosis still need to rely on pathology.

关 键 词：卵巢 纤维瘤 体层摄影术 X线计算机 磁共振成像 

分 类 号：R737.31[医药卫生—肿瘤] R445[医药卫生—临床医学]