<prompt> A 60 years old chronic smoker presented with jaundice, anorexia and weight loss. ERCP was done. The diagnosis on the basis of ERCP findings:Choledochal cystCholangiocarcinomaCarcinoma pancreasChronic pancreatitis  <response>: The image shows double duct sign, which is characteristic of carcinoma head of pancreas. Radiological signs of Ca PANCREAS Double contour of medial border of duodenal C loop Double duct sign -CA head of pancreas. Dilated Widening of duodenal C loop Mucosal irregularity Scrambled egg appearance Inveed reverse 3 sign of Frostberg. Rose thorning of medial wall of 2nd pa of duodenum. Ampullary carcinoma Ca head of pancreas - 3 signs Double Duct Reverse 3 sign of Frostberg Antral pad sign 