摘要
目的：总结卵巢甲状腺肿（SO）的影像学表现。方法：回顾性分析经手术病理证实的8例SO的MR、超声表现,结合病理表现,分析其影像学特征。结果：8例病例均为单侧,边界清楚,囊实性肿瘤。最大径范围5.1~19.3 cm。MR：实性区呈T2等信号、DWI高信号;囊性区不同囊腔信号不均等,所有病例均可见T2WI极低信号区,其在DWI图像上呈低信号。囊壁、囊间隔及实性区强化。超声于7例肿瘤实性部分发现＂甲状腺肿突起＂。结论：SO表现为边界光整肿块,MR上的T2极低信号区和超声图像上的＂甲状腺肿突起＂具有相对特征性,MR及超声检查对其诊断有重要价值。
Objective：To analyze the MR and ultrasound（US） features of struma ovarii（SO）.Methods：MR and US images of 8 patients with pathologically proved SO were retrospectively analyzed.Imaging features were compared with pathological results.Results：All tumors were unilateral,well-defined,mixed solid and cystic.The maximum sizes of the tumors ranged from 5.1 cm to 19.3 cm.MR appearances：The solid components were intermediate intensities on T_2-weighted images and high intensities on diffusion-weighted images.The signal intensities of the cystic components were various.The areas of prominent low intensity on T_2-weighted images were recognized in all cases,which were low intensities on diffusion-weighted images.Cyst walls,septa and solid components were well enhanced.Ultrasonographic appearances：The solid portion of tumors showed parenchymal echogenicity with ＂struma pearls＂ in 7 cases.Conclusion：Struma ovarii appeared as a smooth marginated mass with the areas of prominent low intensity on T_2-weighted images on MR,and ＂struma pearls＂ on US images.The MR and US characteristic appearances of SO may be of great value for the diagnosis.
出处
《温州医科大学学报》
CAS
2015年第9期683-686,共4页
Journal of Wenzhou Medical University
关键词
卵巢甲状腺肿
磁共振成像
超声检查
struma ovarii
magnetic resonce imaging
ultrasonography
