Inflammation involving the hepatic and common bile ducts Pathogenesis similar to that of cholecystitis: obstruction of common bile duct oedema, congestion, necrosis of walls  bacterial proliferation within biliary tree. CAUSES OF OBSTRUCTION: - gallstones - biliary tract surgery, tumour, parasitic infection, calcific pancreatitis etc. ETIOLOGY: Obstruction of the common bile duct due to gallstones Benign strictures Malignant strictures Sclerosing ... Read more