Abstract
Spermatocytic tumor is a rare germ cell tumor not related to germ cell neoplasiain situ, and derived from postpubertal-type germ cells. It was previously called "Spermatocytic Seminoma" due to false belief of its origin from germ cell neoplasiain situ. The tumor usually occurs in an older age group and orchidectomy is curative. We present a case of spermatocytic tumor in a 25-year male who presented with right-sided testicular swelling and right-sided varicocele. Radiology revealed a 9.8 x 9 cm testicular mass and the patient underwent right-sided orchidectomy. Microscopic examination showed classic morphology with three characteristic cell types and diagnosis of spermatocytic tumor was made.