许祥航

摘 要 目的：分析卵巢卵泡膜细胞瘤的MRI表现及其病理基础。方法： 选取我院经手术病理证实，临床资料完整的卵巢卵泡膜细胞瘤患者14 例为研究对象，对其MRI资料，病理资料进行回顾性分析。结果： 13例为单发，共21个病灶均为实质性肿块，平均直径（6.3±1.1）cm，包膜完整清楚呈圆形，边界清晰。T1WI均呈等信号，T2WI呈明显低信号或云絮状高信号。增强期肿块强化为明显低信号。所有患者病理结果均未见肿大淋巴结。镜下瘤细胞由成束的短梭形细胞组成，胞质由于含脂质而呈空泡状。结论： MRI影像与OT的病理较为符合，有助于OT术前准确诊断。

关键词 卵巢肿瘤 泡膜细胞瘤 MRI

中图分类号：R737.31； R730.44 文献标识码：B 文章编号：1006-1533（2016）09-0049-03

MRI manifestation and diagnostic analysis of 14 cases of ovarian theca

XU Xianghang*

（CT Department， The Peoples Hospital of Puning City， Guangdong Puning 515300， China）

ABSTRACT Objective： To analyze the MRI manifestation and pathologic basis of ovarian thecoma （OT）. Methods： Fourteen cases of OT pathologically confirmed with complete clinical information were selected as the research subject and their MRI and pathological data were retrospectively analyzed. Results： There were 13 cases of solitary tumor and total 21 substantive tumor lesions with the average diameter of （6.3±1.1） cm and a complete and round envelope. T1WI presented in isointense， T2WI showed obviously low signal or cottony clouds hypointense. After contrast was enhanced， the tumor displayed obviously low signal. There were no lymph nodes found in all the pathological results. Tumor cells were composed of short bundles of spindle cells and the cytoplasmic presented as vacuolization owing to containing lipid. Conclusion： MRI imaging is accord with the pathologic results of OT， this is of benefit to the accurate diagnosis of OT before surgery.

KEY WORDS ovarian neoplasms； thecoma； magnetic resonance imaging

卵巢卵泡膜细胞瘤（ovarian thecoma， OT）为良性肿瘤，属于卵巢性索间质肿瘤。据文献报道，OT源于卵巢的性索间质，约占卵巢肿瘤0.5%～1%[1]。因肿瘤细胞可产生雌激素，绝大多数患者有雌激素增多产生的体征，患者常表现为月经不调和乳腺增大，多发于绝经后的妇女。OT罕见恶性且临床特征无明显特异性，其CT表现与卵巢实性肿块、带蒂的子宫平滑肌肌瘤较为相似，因此易为误诊 [2]，MRI组织分辨力较好，可直接作出横断面、矢状面、冠状面和各种斜面的体层图像，可较为清晰地反映病灶的信号特征、大小、形态、供血情况及生长方式。本文回顾性分析我院经手术病理证实OT患者MRI表现，以加深对OT的认识，提高诊断分析的准确率。

1 资料与方法

1.1 一般资料

选取2012年3月至2015年9月间于我院经手术病理证实，且临床、影像资料完整的OT患者14 例，年龄20 ～73岁，平均年龄（55.7±2.4）岁。……