chronic cholecystitis

Chronic cholecystitis is caused by recurrent attacks of acute or subacute cholecystitis, or long-standing gallstones resulting in gallbladder dysfunction. About 25% of patients have bacterial infection, and its pathogenic basis is obstruction of the cystic duct or common bile duct. According to whether gallstones are present in the gallbladder, it is divided into calculous cholecystitis and acalculous cholecystitis. Acalculous cholecystitis is cholecystitis caused by bacterial or viral infection or by bile salts and pancreatic enzymes.