卵巢甲状腺肿的多层螺旋CT表现

Multi-slice Spiral CT Features of Struma Ovarii

目的卵巢甲状腺肿(SO)临床罕见,且无典型症状和体征,术前容易误诊。本研究分析SO的多层螺旋CT(MSCT)表现,以提高其影像诊断水平。资料与方法回顾性分析经手术病理证实的25例SO患者的临床及影像学资料,并与术后病理结果进行对照,分析其MSCT表现。结果 25例SO患者中,22例(88%)单侧发病,3例(12%)双侧发病;囊性11例(44%),囊实性8例(32%),实性6例(24%),其中8例可见高密度囊腔。25例SO均边缘光滑,呈圆形、椭圆形或分叶状;镜下见肿瘤实质由甲状腺滤泡样结构和富含血管及纤维组织的基质组成,滤泡大小不等,滤泡腔内为嗜伊红高蛋白凝胶样物。结论单发边界清楚的囊实性肿块、高密度囊腔、钙化及实质部分显著强化是SO的MSCT特点。

Purpose Struma ovarii（SO） is rare and has no typical symptoms,which is likely to be misdiagnosed before procure. The present study aimed to evaluate multi-sliced CT（MSCT） findings of struma ovarii so as to improve its imaging diagnosis. Materials and Methods The clinical and radiological data of 25 patients with struma ovarii confirmed pathologically patients were retrospectively analyzed and further compared with the pathological results after procure. Results For 25 SO patients,22（88%） had unilateral lesions and the rest 3（12%） had bilateral ones; 11 lesions（44%） were cystic,8 lesions（32%） were cystic-solid,and 6 lesions（24%） were solid. The CT images of 8 lesions showed high density cystic lumens. Twenty-five tumors had smooth margins,which appeared round,ellipse or irregular. The pathological findings showed that most of the cystic portions were filled with high proteinaceous gelatinous fluid and eosinophiclic colloid,and the solid portions consisted of thyroid tissue and stoma containing abundant blood vessels and fibrous tissue. Conclusion SO has the MSCT features such as cystic solid mass with unilateral and smooth margin,capsular space with high density,calcification,and solid parts with obvious enhancement.