CAJ | 학술논문

目的探讨婴幼儿阴道内胚窦瘤的CT和MRI表现特点。方法回顾性分析8例经病理证实的婴幼儿阴道内胚窦瘤的CT及MRI表现，分析总结其影像学特点。结果阴道内胚窦瘤瘤体较大，多呈类圆形，CT平扫密度欠均匀，均可见坏死囊变区域。MRI检查瘤体在T1WI序列上呈等低混杂信号，在T2WI序列上以稍高信号为主，信号混杂不均。CT及MRI增强扫描均呈明显不均匀强化，以病灶周边强化最为显著。结论阴道内胚窦瘤的CT和MRl表现具有一定特征性，结合血清AFP显著升高，可以明确诊断。MRI在显示病灶向周围浸润程度、判断疗效及肿瘤复发方面优于CT。
목적탐토영유인음도내배두류적CT화MRI표현특점。방법회고성분석8례경병리증실적영유인음도내배두류적CT급MRI표현，분석총결기영상학특점。결과음도내배두류류체교대，다정류원형，CT평소밀도흠균균，균가견배사낭변구역。MRI검사류체재T1WI서렬상정등저혼잡신호，재T2WI서렬상이초고신호위주，신호혼잡불균。CT급MRI증강소묘균정명현불균균강화，이병조주변강화최위현저。결론음도내배두류적CT화MRl표현구유일정특정성，결합혈청AFP현저승고，가이명학진단。MRI재현시병조향주위침윤정도、판단료효급종류복발방면우우CT。
@@@@Objective To assess the CT and MRI features of endodermal sinus tumors of vagina in infants.Methods The CT and MRI of pathologically confirmed endodermal sinus tumors of vagina in eight infants were analyzed retrospectively.Results Endodermal sinus tumor of vagina showed a large soft tissue mass similar-circular,and the density was inhomogeneous All cases are Endodermal sinus tumor of vagina appeared as a large round soft tissue mass with heterogeneous density,variable necrosis and cystic degeneration on unenhanced CT. The tumor had heterogeneous low to intermediate T1 and slightly high T2 signal intensities. Heterogeneous enhancement especially peripherally was noted on both CT and MRI.Conclusions The CT and MRI features of heterogeneously enhancing vaginal mass with necrosis and cystic degeneration in the setting of elevatedα-fetoprotein level suggest diagnosis of endodermal sinus tumor. MRI is superior to CT in showing surrounding tumor infiltration and tumor recurrence.