👉 In general, a cholecystectomy or gastrostomy is a surgical procedure that removes part of the gallbladder and bile duct from the abdomen. It is often used to treat conditions such as fatty liver disease, pancreatitis, and gallstones. A cholecystectomy typically involves removing the gallbladder (the organ responsible for producing bile), while a gastrostomy involves opening a small passageway in the stomach that allows food to flow into the intestine.