【摘要】 目的 探讨卵巢甲状腺肿（SO）的MRI特征表现。方法 收集14例经手术病理证实的SO患者的临床、MRI资料,分析病灶部位、形态、信号特征以及内部不同成分的强化方式,总结其MRI特征表现。结果 14例均单侧发病,左侧8例,右侧6例。囊实性8例,囊性6例。多房11例,单房3例。MRI信号混杂（高、等、低信号均可出现）,11例病灶内出现≥2处T₂WI极低信号,12例病灶内见T₁WI稍高/高信号。病灶扩散不受限,或实性成分、较厚分隔及囊壁呈不同程度扩散受限。病灶内实性成分、分隔及囊壁明显强化,囊腔不强化。结论 SO的MRI特征表现:单侧卵巢多房囊实性或囊性肿块;信号混杂,T₂WI见极低信号,T₁WI见稍高/高信号;病灶扩散不受限,或实性成分、较厚分隔及囊壁呈不同程度扩散受限;病灶内实性成分、分隔及囊壁明显强化。更多还原

【Abstract】 Objective To explore the MRI features of struma ovarii（SO）.Methods The clinical and MRI data of 14 cases of SO confirmed by operation and pathology were collected.The lesions’ site,morphology,signal characteristics,and the enhancement mode of different internal components were analyzed,and the MRI features of the lesions were summarized.Results All 14 cases had unilateral onset,8 cases on the left side,and 6 cases on the right side.8 cases were cystic-solid,and 6 cases were cystic.11 cases were multilocular and 3 cases were unilocular.MRI signals were mixed（high,equal,and low signals all could appear）,11 cases had at least two places of extremely low signal on T₂WI in the lesions,and 12 cases had slightly high or high signal on T₁WI in the lesions.The diffusion of the lesions was not limited,or the solid component,thicker septation,and cystic wall were limited to different degrees.The solid component,septation,and cystic wall of the lesions were enhanced significantly,but the cystic cavity was not enhanced.Conclusion MRI features of SO:unilateral ovarian multilocular cystic-solid or cystic mass;mixed signals,extremely low signal on T₂WI,slightly high or high signal on T₁WI;no limitation on the diffusion of the lesion,or solid component,thicker septation and cystic wall are limited to different degrees;the solid component,septation and cystic wall of the lesion are enhanced significantly.更多还原