Pure Testicular Cystic Teratoma in an Adult Patient

Testicular tumors are the most common solid tumors in men aged between 15 and 35 year and they account for 1-2% of all male malignancies (1). Cryptorchidism, infertility, trauma, exposure of the mother to exogenous estrogen during pregnancy and infections are the risk factors for testicular cancer. Although most of the tumors (90-95%) originate from germ cells, they may develop from different cell types. Gonadal germ cell tumors (GCTs) of the testis are divided into two groups as seminomas and non-seminoma GTSs (NSGCTs) in which pure teratoma is a subtype of NSGCT (1,2). Pure teratoma is a rare condition accounting for 2-6% of all NSGCTs in adults. Pure form of teratoma is more common in children which constitutes 38% of testicular GCT and 3% of them in adults. They are detected more commonly in children with the incidence of the testicular GCT, 3% in adults and 38% in children, respectively (3). Besides, pure teratomas represent 95% of all ovarian GCTs (1,2). The behavior of testicular teratoma is often aggressive and depends on the patient age, but there is no relationship between the behavior of ovarian teratoma and age.