Hepatoid adenocarcinoma (HAC) is a rare extrahepatic adenocarcinoma that morphologically and immunophenotypically mimics hepatocellular carcinoma (HCC). We report the case of a 42-year-old woman with an extensive cancer history who presented with right-sided abdominal pain and lower gastrointestinal (GI) bleeding, and was ultimately diagnosed with colon adenocarcinoma. She underwent sigmoidecto...

This report is of a 44-year-old woman with an α -foetoprotein–producing rectal adenocarcinoma. At presentation, her serum α-foetoprotein was 158,334 μg/L, and investigation excluded other causes, such as gynaecological malignancy, hepatocellular carcinoma, germ cell tumour, or hepatoid adenocarcinoma. The patient developed early distant metastasis despite treatment with 5-fluorouracil-based che...