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目的总结卵巢卵泡膜细胞瘤(ovarian thecoma,OT)的MRI影像特征。方法回顾性分析12例OT患者的MRI影像资料。结果 12例MRI均表现为边界清晰的单侧卵巢肿块,3例呈类圆形,9例呈分叶状;实性肿块10例,囊实性肿块2例;平扫T1WI呈等信号9例,呈稍低信号3例;T2WI呈明显低信号2例,等低混杂信号9例,高信号1例;增强扫描示病灶实体部分呈轻度强化11例,明显强化1例;12例均伴少量盆腔积液。结论 OT的MRI表现具有一定特征性,有助于其诊断及鉴别诊断。
Objective To summarize the MRI features of ovarian thecoma (OT). Methods The MRI data of 12 patients with OT were retrospectively analyzed. Results All the 12 cases showed unilateral ovarian masses with clear border. Three cases were round and 9 cases were lobulated. There were 10 cases of solid mass and 2 cases of cystic solid mass. There were 9 cases of equal signal on plain T1WI , Showing a slightly lower signal in 3 cases; T2WI was significantly lower in 2 cases, low and mixed signal in 9 cases, high signal in 1 case; enhanced scan showed solid lesions in 11 cases were mild enhancement, significantly enhanced in 1 case; 12 cases were accompanied Small amount of pelvic fluid. Conclusion The MRI findings of OT have certain characteristics, which are helpful to its diagnosis and differential diagnosis.