[Hepatoid Adenocarcinoma of the Lung with High Serum AFP and CEA Values;Report of a Case].

A 60-year-old man exhibited an abnormal shadow in the right upper lobe. He was diagnosed with lung cancer by percutaneous computed tomography-guided lung tumor biopsy. Preoperative blood test showed high serum alpha-fetoprotein(AFP) and carcinoembryonic antigen(CEA) values. Right upper lobectomy was performed and histlogical diagnosis was AFP producing hepatoid adenocarcinoma with immunohistochemically positive HEP-PAR1. After the surgery, AFP and CEA values decreased to normal range.