Learning Point for Clinicians Hepatoid adenocarcinoma of lung is a rare type of lung cancer which is defined as an α-fetoprotein—producing primary carcinoma with morphological features similar to hepatocellular carcinoma. Establishing the diagnosis of HAL is worthwhile because of the potential for altered management. A 79-year-old Chinese male smoker (50 pack-year), was admitted to the Department of General Internal Medicine at Ningbo Number 1 Hospital due to cough and sputum production over a 1-month period. A chest CT-scan showed a 2.7 × 2.6 cm right parahilar mass (Figure 1a and b): MRI did not reveal any intra-abdominal masses or lymphadenopathy. Figure 1. (a and b) CT revealed a mass 2.7 × 2.6 cm in the right parahilar region. During the patients stay in hospital, the serum α-fetoprotein (AFP) level rose …