超声联合增强CT诊断卵巢甲状腺肿  

Ultrasound combined with contrast-enhanced CT in diagnosis of struma ovarii

作　　者：石喻[1] 郭启勇[1] 李悦[2] 孙佳星[3] 高玉颖[1] 李加慧[1] 李秋菊[1] 

机构地区：[1]中国医科大学附属盛京医院放射科,辽宁沈阳110004 [2]中国医科大学附属盛京医院病理科,辽宁沈阳110004 [3]中国医科大学附属盛京医院超声科,辽宁沈阳110004

出　　处：《中国医学影像技术》2014年第3期441-445,共5页Chinese Journal of Medical Imaging Technology

基　　金：国家自然科学基金面上项目(81271566)

摘　　要：目的 探讨超声联合增强CT诊断卵巢甲状腺肿（SO）的价值。方法 回顾性分析17例经手术病理证实的SO患者的声像图及增强CT特点，并与病理结果对照。结果 17例包括良性14例及恶性3例SO，其中10例囊实混合性，6例多囊性，1例单纯实性。超声于6例肿瘤实性部分发现 ＂甲状腺肿突起＂，CT值35~82 HU[平均（61.5±12.1）HU]；囊性部分呈无回声或低回声，对应CT值13~89 HU[平均（43.4±22.7）HU]；其中7例含＂高密度囊＂（CT值〉50 HU）。CT增强显示14例实性成分及囊壁强化，其中9例明显强化或呈特征性＂甲状腺样强化＂，对应的CDFI未见明显血流。结论 SO多为囊性或囊实性肿块；实性成分显著强化结合CDFI少量血流信号不一致、囊液CT值增高结合声像图无回声或低回声不一致可能是SO的特异性影像学表现。Objective To explore the value of ultrasonography （US） and contrast-enhanced CT （CECT） in diagnosis of struma ovarii （SO）. Methods Totally 17 patients with SO proved by pathology underwent US and CECT. Features of US and CECT were analyzed retrospectively and compared with pathological results. Results Of 17 cases, 14 SO were benign and 3 were papillary carcinoma. The tumors appeared as solid-cystic mass in 10 cases, cystic mass in 6 cases, and solid mass in 1 case. The solid portion of tumors showed parenchymal echogenicity with ＂struma pearls＂ in 6 cases, and the average attenuation on plain CT was 35-82 HU （mean [61.5±12.1] HU）. The cyst portion of tumors had variable attenuation on plain CT （13-89 HU, mean [43.4±22.7] HU）. Plain CT value of SO were higher than 50 HU in 7 cases, whereas present as anechogenicity or hypoechogenicity on ultrasonograms. On CECT, strong or very strong enhancement like thyroid was found in 9 cases, but the tumors did not have abundant blood supply on CDFI. Conclusion SO tends to appear as cystic-solid or multilocular cystic mass. Specific imaging features, including strong enhancement of solid components on CECT but without abundant blood flow on Doppler images, variable attenuation of cystic components with anechogenicity or hypoechogenicity on ultrasonograms are hints on diagnosing SO.

关 键 词：卵巢甲状腺肿 体层摄影术 X线计算机 超声检查 多普勒 彩色 

分 类 号：R737.31[医药卫生—肿瘤] R445[医药卫生—临床医学]