Abstract

Adult pure yolk sac tumors are rarely seen. Until now limited number of the cases has been reported in the literature, and it was stated that they had bad prognosis. While pure yolk sac tumors are the most commonly seen testis tumor in childhood, they are observed as the component of mixed germ cell testis tumors in adults, and exhibit more different behaviour than the childhood tumors. In this report, a 22-year-old patient having the complaint of left testicular swelling for about 1.5 years and whose pathology was reported as pure yolk sac tumor after the inguinal orchiectomy has been presented.