卵巢良性囊性病变的CT、MRI表现

目的 分析卵巢良性囊性病变(BOCL)的CT和MRI表现,提高对其的影像诊断与鉴别诊断水平.方法 回顾分析48例经手术病理证实的BOCL的CT和MRI表现.35例行CT平扫,其中20例行CT增强检查;8例行MRI平扫,其中3例行MRI增强检查及扩散加权成像(DWI)检查;5例同时行CT、MRI检查.结果 囊肿11例(单纯性囊肿3例、黄体囊肿3例、子宫内膜异位囊肿5例),浆液性囊腺瘤10例13个病灶,黏液性囊腺瘤8例,囊性成熟型畸胎瘤9例10个病灶,卵巢甲状腺肿10例.BOCL的大小、形态、囊壁(厚度、有无壁结节)、密度或信号、强化程度和方式等特征有助于其诊断与鉴别诊断.结论 部分BOCL的CT、MRI表现具有一定特点,术前可做出正确诊断,为临床治疗方案的选择及预后判断提供一定的理论依据.

Benign ovarian cystic lesions: CT and MRI findings

Objective To study the CT and MRI features of benign ovarian cystic lesions (BOCL) and to improve the understanding of imaging features.Methods CT and MRI findings were retrospectively reviewed and analyzed in 48 patients with BOCL proved by surgical pathology.CT scan was performed in 35 cases, among which 20 cases were performed with CT enhancement scan;MRI scan was performed in 8 cases, among which 3 cases were performed with MRI enhancement scan and diffusion weighted imaging(DWI).Five cases were performed with both CT and MRI.Results There were 11 cysts (3 simple cysts, 3 corpus luteum cyst, and 5 endometriotic cyst), 10 serous cystadenomas with 13 lesions, 8 mucinous cystadenomas, 9 teratomas with 10 lesions, and 10 struma ovarii.The CT and MRI characteristics of the lesions in size, shape,thickness of cyst wall,wall nodule,density or signal intensity,and enhancement features were helpful in differential diagnosis of BOCL.Conclusion CT and MRI findings of BOCL have certain characteristics, which is significant in the diagnosis, preoperative evaluation and prognosis.