[Diffuse Hepatoid Adenocarcinoma in the Peritoneal Cavity:Report of One Case].

Hepatoid adenocarcinoma is a rare and unique type of adenocarcinoma,resembling hepatocellular carcinoma in histopathology.Most cases occur in the stomach,lacking specific clinical and imaging manifestations,which leads to high rates of missed diagnosis and misdiagnosis.Hepatoid adenocarcinoma in the peritoneal cavity is even rarer.This article reports a case of hepatoid adenocarcinoma with the manifestation of diffuse peritoneal thickening,aiming to provide reference for clinical diagnosis and treatment.