AFP and neoplasm: Biologic tumor response evaluated with alpha-fetoprotein (AFP) serum level was available before index treatment and at follow-up in 43/97 (44%) patients with a mean baseline value of 330.6 ± 1026.6 (range 2–5700) ng/mL and matched follow-up values of 92.0 ± 241.8 (range 2–1200).