卵巢卵泡膜细胞瘤的CT诊断分析

目的 分析卵巢卵泡膜细胞瘤的CT表现,提高对该病的影像诊断水平.方法 分析12例经手术病理证实的卵巢卵泡膜细胞瘤患者的CT表现,并结合临床及手术、病理资料进行分析.结果 12例患者中仅2例CA125轻度升高,余肿瘤标记物正常.有3例患者行雌激素6项检查,其中有2例激素水平表现异常,分别为雌二醇增高和泌乳素增高.有4例出现少量腹腔积液,1例同时出现双侧少量胸腔积液.CT上肿瘤均为单侧发生,位于右侧附件区7例,左侧附件区5例.8例表现为边界清楚的圆形、类圆形实质性肿块,4例表现为边界清楚的分叶状实质性肿块,平扫密度均与子宫肌层相近,3例肿瘤内可见斑片状低密度区;增强扫描示肿瘤在实质期和延迟期呈缓慢渐进性轻度强化.3例肿瘤较大,其内散在斑片状低密度未强化区.结论 卵泡膜细胞瘤的CT表现有一定特征性,CT对本病的诊断和鉴别诊断有一定价值.

CT diagnosis of ovarian thecoma

Objective To analyze CT characteristics of ovarian thecoma and improve diagnostic level for it. Methods CT findings of ovarian thecomas in 12 cases proved by surgery and pathology were analyzed retrospectively. Results The tumor markers of all patients were normal except the CA125 raised in two patients. The estrogen series were examed in three patients, and two patients were abnormal with rising of the estrogen and prolactin. A little ascites appeared in 4 cases, bilateral pleural effusion appeared in 1. The tumors located at right side in 7, left side in 5. Of the 12 tumors, 8 were nearly round or elliptic solid masses with distinct boundary, 4 were muhilobular in shape with clear border, and the density of tumors was same as myometrium. There were schistose low density areas in 3 cases. The tumors were enhanced slightly and gradually from parenchyma phase to delay phase after contrast medium injection. There were patch non-enhancement area scattered in three larger tumors after contrast medium injection. Conclusion The ovarian thecoma posses specific CT characteristic manifestation and thus CT provide as a valuable diagnostic measure.