A 55-year-old male presents with features of obstructive jaundice. He also repos a weight loss of seven kilograms in last two months. On CT scan, the CBD is dilated till the lower end and the main pancreatic duct is also dilated. Pancreas is normal. The most likely diagnosis is:
Ans. Periampullary carcinoma
Choledocholithiasis
Carcinoma gallbladder
Hilar cholangiocarcinoma
Periampullary carcinoma