IT IS NOT ALWAYS A CHOLANGIOCARCINOMA: UNUSUAL PERITONEAL CARCINOMATOSIS REVEALING GASTRIC ADENOCARCINOMA

In more than 85% of cases, gastric cancer is discovered at an advanced stage. Malignant biliary obstruction is an uncommon complication of gastric cancer, this case report presents a case of a peritoneal carcinomatosis causing biliary obstruction with radiographic dilatation, mimicking cholangiocarcinoma, and secondary to gastric adenocarcinoma. The imaging investigation had decisive roles in the diagnosis and differential diagnosis of the malignant jaundice predominated by periductal infiltrating cholangiocarcinoma, this pattern of cholangiocarcinoma, is frequently found in perihilar cholangiocarcinoma, it typically shows marked dilatation on imaging of the biliary tree proximal to the tumoral lesion.