Cost-effective strategies for the follow-up of patients with germ cell
tumors must be based on the known natural history of the disease, the
accuracy and cost of diagnostic modalities, and the efficacy and effe
ctiveness of therapy when recurrences are detected. The natural histor
y of stage I and stage II germ cell tumors are reviewed, including the
unique circumstances of late recurrences. The accuracy and cost of im
aging modalities are also reviewed and general recommendations to cost
-effective follow-up are proposed.