卵巢甲状腺肿CT诊断与病理对照分析

目的 分析卵巢甲状腺肿(SO)的CT表现.方法 回顾性分析11例经手术及病理证实的卵巢甲状腺肿的临床及CT资料,将CT表现与手术病理结果对照.结果 ①所有的肿瘤均位于单侧,CT平扫表现为境界清晰的不规则肿块,呈囊实性混杂密度(6例,54.5%)或多发纯囊性密度影(5例,45.5%).②囊性部分为边界清晰、多发大小不等的囊腔,均有完整囊壁,内壁光整,7例(63.6%)病灶内可见高密度囊,CT值范围为72.3～113.5 HU,实性部分为形态不规则的软组织密度,分布于囊腔之间,增强扫描囊性部分无强化,囊壁可见无或中重度强化,实性部分明显强化.③8例(72.7%)病灶实性部分和(或)囊壁内可见斑点状钙化.④3例(27.3%)病灶合并成熟性畸胎瘤,并出现脂肪等密度影.⑤3例(27.3%)病灶合并大量腹水及胸水.结论卵巢甲状腺肿CT表现具有相对特征性,CT诊断有其重要价值.

Struma Ovarii: Correlation of CT Appearances and Pathological Findings

Objective To analyzed the CT features of struma ovarii(SO).Methods The clinical data and CT features of eleven patients with pathologically proved SO were retrospectively analyzed.CT features were compared with pathological results.Results(1)All tumors were unilateral.On non-enhanced CT,the lesions presented as well-defined irregular masses,which were cystic-solid(n=6,54.5%)or cystic(n=5,45,5%).(2)The cystic portions presented as well-defined,multiple,various size,and there were entire cystic walls with smooth inner wall.The tumors(63.6%)showed a high at attenuation lesions in the cyst portion of the mass on precontrast scans and the attenuation ranged from 72.3 to 113.5 Hounsfield units(HU)in 7 cases.The solid portions showed irregular tissue density,and were often distributed in the cysts.After contrast administration,the cystic portions showed no enhancement,the solid portions marked enhancement,and the cystic walls demonstrated no moderate,or marked enhancement.(3)The tumors(72.7%)showed stippled calcification in solid portions and(or)cystic wall in 8 cases.(4)The tumors(27.3%)accompanied with mature cystic teratomas,and showed fat density in 3 cases.(5)The tumors(27.3%)accompanied a great of ascites and pleural liquid.Conclusion CT characteristics of SO might be of great value for the diagnosis.