卵巢纤维卵泡膜瘤的MRI表现

发布时间：2018-03-08 16:07

本文选题：卵巢　切入点：纤维卵泡膜瘤　出处：《中国医学计算机成像杂志》2017年03期 　论文类型：期刊论文

【摘要】：目的:分析卵巢纤维卵泡膜瘤的MRI表现,以提高对其MRI特征的认识。方法:回顾分析20例经病理证实的卵巢纤维卵泡膜瘤的MRI表现及临床资料。根据T2WI信号特点将病例分成高信号组与低信号组,采用t检验及精确Fisher确切概率法比较两组间肿瘤最大径、血清糖抗原125(CA-125)升高例数以及子宫内膜病变发生例数之间的统计学差异。结果:20位患者中18例为绝经后妇女(90%),10例(50%)表现为CA-125增高,6例(30%)合并子宫内膜病变,1例(5%)合并卵巢畸胎瘤。20例患者均出现腹水体征,其中1例表现中等量腹水,19例为少量腹水。T1WI上所有肿块都表现为略低信号。肿瘤的T2WI有两个主要特点:(1)以等、稍高信号为主(稍高信号组,10例)。(2)以低信号为主(低信号组,10例)。两组间病灶最大径、CA-125值升高例数差异无统计学意义,P=0.439、P=0.656;两组间子宫内膜病变发生数差异有统计学意义(P=0.011)。增强后肿瘤呈轻度、不均匀强化,强化程度小于子宫肌层(P=0.000)。结论:良性肿瘤的形态学特征、少血供、T2WI信号、常合并腹水及子宫内膜病变的MRI特征有助于卵巢纤维卵泡膜瘤的诊断。肿瘤的T2WI信号特点有助于患者高雌激素血症的诊断。
[Abstract]:Objective: to analyze the MRI findings of fibrous follicular tumor of ovary. Methods: the MRI findings and clinical data of 20 cases of fibrous follicular tumor of ovary proved by pathology were analyzed retrospectively. According to the signal characteristics of T2WI, the patients were divided into high signal group and low signal group. T test and exact Fisher probability method were used to compare the maximum diameter of tumor between the two groups. Statistical differences in the number of elevated serum glucose antigen 125 (CA-125) and the number of endometrial lesions. Results 18 out of 20 patients were postmenopausal women with 50% of the 10 patients. (6 cases with increased CA-125 were found in 6 cases with 30%) and 1 case with endometrial lesions (5%). Ascites were found in 20 patients with ovarian teratoma. One case showed moderate ascites in 19 cases. All masses on T1WI showed slight hypointensity. There were two main features in T2WI. The main signal intensity was hypointensity (10 cases in the hyperintense group) (10 cases in the low signal group). There was no significant difference in the number of patients with increased CA-125 value of the lesion between the two groups, and there was a significant difference in the number of endometrial lesions between the two groups. After enhancement, the tumor was mild. The degree of enhancement was less than that of myometrium. Conclusion: the morphological features of benign tumors, the signal intensity of T2WI with less blood supply, The MRI features of ovarian fibrofollicular tumor with ascites and endometrial lesions are helpful to the diagnosis of ovarian fibrofollicular tumor and the T2WI signal characteristics of the tumor are helpful to the diagnosis of hyperestrogenemia.
【作者单位】：上海市普陀区人民医院放射科;
【分类号】：R445.2;R737.31

【相似文献】