儿童睾丸畸胎瘤的MRI表现及病理分析  

MRI findings and pathological analysis of testicular teratoma in children

作　　者：李长健 胡克非 李旭 胡俊 尹传高 LI Changjian;HU Kefei;LI Xu;HU Jun;YIN Chuangao(Department of Radiology,Anhui Children’s Hospital,Hefei 230051,China)

机构地区：[1]安徽省儿童医院影像科,安徽合肥230051

出　　处：《实用放射学杂志》2024年第7期1142-1145,共4页Journal of Practical Radiology

摘　　要：目的分析儿童睾丸畸胎瘤的临床及MRI影像并与病理结果对照。方法回顾性分析经病理确诊的12例儿童睾丸畸胎瘤的临床及MRI资料。结果12例中,左侧睾丸6例,右侧睾丸6例。临床表现均为睾丸无痛性肿大,6例伴神经元特异性烯醇化酶轻度升高,3例甲胎蛋白(AFP)升高,10例为成熟型畸胎瘤,2例为未成熟型畸胎瘤。MRI表现上,6例病灶为囊性,以长T_(1)长T_(2)信号为主,压脂像信号不减低,增强扫描无强化,扩散加权成像(DWI)为低信号。6例为囊实性病灶,以混杂T_(1)混杂T_(2)信号为主,DWI为不均匀高信号,增强扫描囊性成分无强化,实性成分轻度至明显强化,其中3例伴不规则片状短T_(1)长T_(2)信号,压脂像信号减低,1例伴斑点状长T_(1)短T_(2)信号。12例病灶包膜均完整。结论儿童睾丸畸胎瘤的MRI表现多以囊性病变为主,脂肪及钙化信号少见,无明显周围结构侵犯,结合AFP检查有助于诊断。Objective To analyze the clinical and MRI images of testicular teratoma in children and to compare with pathological results.Methods The clinical and MRI data of 12 children with testicular teratoma confirmed by pathology were analyzed retrospectively.Results Of the 12 cases,6 cases were on the left testicle and 6 cases were on the right testicle.The clinical manifestations were all painless testicle enlargement.Of these,6 cases were accompanied by a slight increase of neuron-specific enolase,3 cases had increased alpha-fetoprotein(AFP),10 cases were mature teratoma,and 2 cases were immature teratoma.MRI findings showed that the lesions in 6 cases were cystic,with long T_(1) and T_(2) signals as the main signals,no reduction in lipid pressure image signals,no enhancement on the enhanced scan,and low signal on diffusion weighted imaging(DWI).The other 6 cases were cystic-solid lesions,mainly with mixed T_(1) and T_(2) signals,and showed uneven high signal on DWI.The cystic components were not enhanced on the enhanced scan,and the solid components were mildly to significantly enhanced.Among them,3 cases were accompanied by irregular flaky short T_(1) and long T_(2) signals,decreased lipid pressure image signals,1 case was accompanied by speckle long T_(1) and short T_(2) signals.And the envelope intact in all 12 cases.Conclusion The MRI findings of testicular teratoma in children are mostly cystic lesions,with few signs of fat and calcification,and no obvious invasion of peripheral structures.AFP examination is helpful for diagnosis.

关 键 词：儿童 睾丸畸胎瘤 磁共振成像 

分 类 号：R339.31[医药卫生—人体生理学] R737.21[医药卫生—基础医学] R445.2