卵巢甲状腺肿的CT误诊分析

CT Image Misdiagnosis of Truma Ovari

目的总结分析卵巢甲状腺肿(SO)的CT特征及误诊原因,以提高其诊断正确率。方法分析经手术病理证实的10例SO的CT特点,包括病灶大小、部位、边界、成分特点、钙化、强化形式、是否伴腹水等。结果10例SO均单发,边界清,CT表现为多囊性3例,单囊性2例,囊性为主的囊实性5例,囊腔平扫呈高密度1例,囊壁/分隔伴钙化6例;增强扫描2例病灶实性成分强化显著;2例伴有少量腹水。仅1例术前CT诊断为SO,其余9例均误诊为卵巢囊腺瘤/癌。结论SO的CT表现具有一定特点:单侧附件区病变,囊实性或囊性,边界清,囊壁/分隔伴钙化,囊腔平扫呈高密度,是其CT诊断要点。

Objectives To describe the CT features of struma ovarii(SO)and improve diagnostic accuracy of CT in this disease.Methods To analyze the CT findings include location,size,form,internal composition,calcification,enhancement,ascites of 10 SO cases which were confirmed by surgery and pathology.Results All the SO cases were unilateral with clear boundary,in which 3 cases were multilocular cyst,2 cases were unilocular cyst,5 cases were cystic-solid.On density,1 case was high density cyst,and 6 cases were detected calcification.Only 2 cases with the solid portions of lesion were enhanced obviously.2 cases were accompanied with ascites.Retrospectively survey on CT reports showed that 9 cases were misdiagnosed as ovarian cystadenoma/carcinoma,and only 1 case was diagnosed as SO before surgery.Conclusion CT characteristics might be of great value for the SO diagnosis,such as multicyst/solid tumor,clear margin,calcification and high density.