小儿睾丸卵黄囊瘤的CT表现及鉴别

CT appearance of testicular yolk sac tumors in children

目的探讨小儿睾丸卵黄囊瘤的CT表现,提高卵黄囊瘤的CT诊断符合率。方法回顾性分析12例经手术病理证实的小儿睾丸卵黄囊瘤的临床和CT资料。结果 12例CT平扫均表现为睾丸实性肿块,10例肿块表现为均匀密度,2例表现为不均匀密度。8例CT增强扫描均表现为明显不均匀强化,其周边部强化明显,1例累及到一侧精索及同侧腹股沟淋巴结。结论 CT对小儿睾丸内卵黄囊瘤具有一定的诊断价值,结合血清AFP升高有助于术前诊断。

Objective To study the CT appearance of pediatric testicular yolk sac tumor. Methods Clinical records and CT scans of testicular yolk sac tumor in twelve children were reviewed. Results The tumors appeared as solid masses on unenhanced CT scan with homogeneous （10） or heterogeneous （2） densities and heterogeneous contrast enhancement （8）. The ipsilateral spermatic cord and inguinal lymph nodes were invaded in one patient. Conclusion CT is a valuable for diagnosing testicular yolk sac tumor in children. AFP measurement can help with definitive pre-operative diagnosis.