Version June 2024
| Stage | Extent of disease |
| I | Limited to testis (testes), completely resected by high inguinal orchiectomy; no clinical, radiographic, or histologic evidence of disease beyond the testes. Patients with normal or unknown tumor markers at diagnosis must have a negative ipsilateral retroperitoneal node sampling to confirm stage I disease if radiographic studies demonstrate lymph nodes >2 cm. |
| II | Previous transscrotal biopsy; microscopic disease in scrotum or midway or higher in spermatic cord. Failure of tumor markers to normalize or decrease with an appropriate half life. |
| III | Retroperitoneal lymph node involvement, but no visceral or extra-abdominal involvement. Lymph nodes >4 cm by CT or >2 cm and <4 cm with biopsy proof. |
| IV | Distant metastases, including liver. |
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