| Noninvasive germ cell tumors |
| Germ cell neoplasia in situ (GCNIS) |
| Intratubular seminoma |
| Intratubular embryonal carcinoma |
| Invasive germ cell tumors |
| Seminoma |
| Nonseminomatous germ cell tumors |
| Embryonal carcinoma |
| Choriocarcinoma |
| Yolk sac tumor (endodermal sinus tumor) |
| Teratoma |
| Teratoma with malignant/somatic transformation |
| Mixed germ cell tumor |
| Spermatocytic tumor |
| Sex cord-stromal tumors |
| Sertoli cell tumor |
| Leydig cell tumor |
| Granulosa cell tumor |
| Mixed types (eg, Sertoli-Leydig cell tumor) |
| Unclassified |
| Mixed germ cell and stromal tumors |
| Gonadoblastoma |
| Adnexal and paratesticular tumors |
| Adenocarcinoma of rete testis |
| Adenocarcinoma of the epididymis |
| Mesothelial neoplasms |
| Malignant mesothelioma |
| Adenomatoid tumor |
| Miscellaneous tumors |
| Carcinoid |
| Lymphoma |
| Metastatic tumors (prostate carcinoma is the most common) |
