AFP and hepatocellular carcinoma: For example, the formula A22 indicates a patient with a stage A HCC, with an ITA.LI.CA functional score of two points (CPS of 6–7 and PST of 1–2 or CPS of 8–9 and PST of 0), and with two points for AFP (>1,000 μg/l); the formula C00 indicates a stage C HCC, with a CPS of 5 and a PST of 0 and with AFP ≤ 1,000.