卵巢硬化性间质瘤的CT表现

CT Manifestations of Ovarian Sclerosing Stromal Tumor

目的:探讨卵巢硬化性间质瘤(SST)的CT表现特点,提高对该病的诊断水平。材料与方法:回顾性分析经手术和病理证实的9例卵巢SST的CT表现。结果:9例均为单发,左侧5例,右侧4例,均表现为囊实性肿块,边缘清楚光滑,动态CT增强扫描动脉期9例肿块边缘部分均见明显强化,静脉期、延迟期实性部分渐进性、向心性强化,呈持续性强化,囊变区始终不强化,7例肿块与附件相连侧可见迂曲的粗大血管。结论:卵巢SST的动态CT增强扫描表现具有一定的特征性,结合图像后处理技术有助于该病的诊断及鉴别诊断。

Purpose： To discuss the CT manifestations of ovarian sclerosing stromal tumor （SST）, in order to improve the diagnostic accuracy of the disease. Materials and Methods： The CT features of ovarian SST（ n = 9）, which were proved by surgery and pathology, were retrospectively analyzed. Results： All of the 9 patients had solitary tumor with 5 on left-side and 4 on right-side. All tumors were cystidium and solid mixed with limpid bouncary. Marked marginal enhancement was showed in all tumors in the arterial phase of dynamic contrast CT. Consistent significant enhancement and centripetal enhancement were detected in the venous phase and the delayed phase. No enhancement was assessed in the cystic area in the whole course. Dilated tortuous arteries enhanced obviously around the mass were found in 7 cases. Conclusion： Some characteristic manifestations could be displayed on dynamic contrast CT, which is helpful for diagnosis and differential diagnosis of ovarian SST with image post-processing technology.