卵巢卵泡膜细胞瘤的CT诊断

目的 分析卵巢卵泡膜细胞瘤的CT特点，提高其CT诊断水平。方法 回顾性分析经手术病理证实的12例13个卵巢卵泡膜细胞瘤的CT资料，分析其特点。结果 肿瘤形态呈类圆形、卵圆形9例，不规则、分叶状4例。肿瘤最大径范围在3．5～20．0cm之间，平均长径为9．8cm。边缘清楚者12例，1例蒂扭转者边缘模糊。密度均匀8例，不均匀5例。增强后11个病灶仅有轻微强化(CT值上升4～10HU)，2个病灶无强化。3例增强后肿瘤内见多条纤细血管影。伴有腹水者7例。结论 CT能很好显示卵巢卵泡膜细胞瘤的大体形态，卵泡膜细胞瘤具有良性肿瘤的形态特征，增强后仅轻微强化。

CT diagnosis of ovarian thecoma

Objective To analyze CT manifestations of ovarian thecoma, and to improve the diagnostic level for this disease. Methods CT findings of ovarian thecomas in 12 cases proved by surgery and pathology were analyzed retrospectively. Results Of the 13 tumors, 9 were nearly round or elliptic and 4 were multilobular or irregular in shape. The size of the tumors ranged from 3.5 cm to 20.0 cm, and the mean maximum diameter was 9.8 cm. 12 tumors had clear border but one was tortile. 8 cases were of homogeneous density and 5 heterogeneous. 11 tumors enhanced slightly and 2 had no enhancement after contrast medium injection. There were slim blood vessels in tumors in 3 cases after enhancement. 7 cases had ascites. Conclusion CT can demonstrate the macropathologic form of ovarian thecoma well. The ovarian thecoma possesses characteristic features of benign tumors. Slight enhancement after contrast medium is its characteristic.