CAJ | 학술논문

目的：分析卵巢甲状腺肿(SO)的多层螺旋 CT(MSCT)表现特征,以期提高其术前诊断准确率。方法回顾性分析经手术病理证实的 SO 12例患者的临床资料及影像学资料。记录病灶部位、大小、边缘、形态、内部构成、平扫囊内是否出现高密度囊腔、是否伴有钙化、实性成分及囊壁强化程度、是否合并腹腔积液。结果12例 SO 均为单发,边缘光滑。CT 表现为单纯囊性3例,囊性为主的囊实性9例；囊内密度不均,其中8例病灶内见高密度囊腔,5例囊内分隔伴钙化。增强检查病灶内实性成分有不同程度强化,囊壁多呈轻中度强化。5例伴有少量腹腔积液。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,滤泡腔内为嗜伊红的胶冻样物。结论盆腔内边界清晰的囊实性或囊性肿块、囊壁较厚可伴钙化、平扫囊内密度较高、实性部分明显强化是 SO 的 CT 表现特点。
목적：분석란소갑상선종(SO)적다층라선 CT(MSCT)표현특정,이기제고기술전진단준학솔。방법회고성분석경수술병리증실적 SO 12례환자적림상자료급영상학자료。기록병조부위、대소、변연、형태、내부구성、평소낭내시부출현고밀도낭강、시부반유개화、실성성분급낭벽강화정도、시부합병복강적액。결과12례 SO 균위단발,변연광활。CT 표현위단순낭성3례,낭성위주적낭실성9례；낭내밀도불균,기중8례병조내견고밀도낭강,5례낭내분격반개화。증강검사병조내실성성분유불동정도강화,낭벽다정경중도강화。5례반유소량복강적액。경하견종류실질유갑상선려포양결구화부함혈관급섬유조직적기질조성,려포강내위기이홍적효동양물。결론분강내변계청석적낭실성혹낭성종괴、낭벽교후가반개화、평소낭내밀도교고、실성부분명현강화시 SO 적 CT 표현특점。
Objective To evaluate computed tomographic findings of struma ovarii so as to improve the knowledge of the imaging diagnostics of this disease.Methods Computed tomography (CT)scans and clinical data of 12 pathologically proven struma ovarii were reviewed retrospectively.Scans were evaluated for the laterality,size,margins,configuration,internal architecture,presence of intracystic high attenuation lesions on pre-contrast scans,the presence of calcifications,solid components enhancement,cyst wall enhancement,and ascites.Results All tumors were unilateral and had smooth margins.Cystic (n = 3)or mainly cystic (n = 9) appearance was common to all the tumors.Eight tumors showed a high attenuation lesion in the cyst portion of the mass on pre-con-trast scans.Calcification was found in 5 cases.The solid components showed different degrees of enhancement after administration of contrast medium.The cyst wall showed mild to moderate enhancement after administration of contrast medium.Five cases of tumors accompany a small amount of ascites.On pathology,the solid portions of the tumor consisted of the thyroid tissue and stoma which contained abundant blood vessels and fibrous tissue,and the cystic portions were filled with high gelatinous fluid of eosinophil-ic colloid.Conclusion On CT scans,struma ovarii appeared most often as a smooth marginated multicystic mass with a high attenu-ation lesion and calcification on pre-contrast scans with marked enhancement of the solid components.