ABSTRACT
Objective To analyze the clinical characteristics and CT manifestations of pediatric testicular yolk sac tumor,to im-prove the CT diagnostic level of the disease.Methods Five pediatirc patients with testicular yolk sac tumor was retrospectively en-rolled in this study.All cases underwent spiral CT scan and enhancement scan prior to operation.Furthermore,the clinical and ima-ging data of these 5 cases were analyzed.Results Image features were unilateral testicular mass with uneven density,including patchy necrosis area,no obvious calcification and fatty density on CT scan.Obvious uneven reinforcement was revealed in the sub-stantial part of the masses after enhancement scan,no obvious reinforcement was revealed in necrotic area.Homogeneous enlarge-ment of the spermatic cords was demonstrated in all 5 cases,and the density was uniform.Obvious reinforcement was revealed in all affected spermatic cords,and the degree of the reinforcement was more obvious than those normal sides.The preoperative diagnosis of 5 cases was stage I malignant germ cell tumor Yolk sac tumor.The diagnosis of all 5 cases was basically in the line with surgical and pathological results.Conclusion CT scan is not only valuable in determining the nature of the tumor,but also helps to tumor management.