Classification of Testicular Tumors

• Germ Cell Tumors 95%

• Seminoma 50% (HCG, LDH)

• Embryonal carcinoma 85% Mixed GCTs (HCG)

• Yolk sac tumor (Endodermal sinus tumor) (AFP)

• Choriocarcinoma (HCG)

• Teratoma (HCG)

• Sex cord-stromal tumors 5%

• Leydig

• Large cell calcifying Sertoli (Carney complex, Peutz-Jegher’s syndrome)

• Granulosa

• Mixed germ cell and stromal tumors

• Gonadoblastoma

• Miscellaneous

• Lymphoma

• Carcinoid

• Metastatic