Acute cholecystitis
This photo is of acute cholecystitis with mucosal erosion. The higher magnification inset shows inflammatory exudate
spilling out through damaged epithelium. Though acute cholecystitis can occur without gallstones in certain severe
illness settings, most cases are precipitated by obstruction of the gall bladder neck or the cystic duct by a stone.
Contributed by Dr. Robert Van Wesep