Table 1. International Germ Cell Collaborative Group Prognostic Classification (1997).

	Good	Intermediate	Poor
Seminoma	Any primary site No NPVM	Any primary site NPVM	Not applicable
Non- seminoma	All criteria: Gonadal/RP primary No NPVM hCG < 5000 IU/L AFP < 1000 ng/mL LDH < 1.5 ULN	All criteria: Gonadal/RP primary No NPVM 5000 ≤ hCG ≤ 50,000 IU/L 1000 ≤ AFP ≤ 10,000 ng/mL 1.5 ≤ LDH ≤ 10 ULN	Any criteria: Mediastinal primary NPVM hCG > 50,000 IU/L AFP > 10,000 ng/mL LDH > 10 ULN

AFP, α-fetoprotein; hCG, human chorionic gonadotropin; LDH, lactate dehydrogenase; NPVM, non-pulmonary visceral metastasis; RP, retroperitoneal; ULN, upper limit of normal.