The pancreas is a gland organ located behind the stomach that manufactures a cocktail of enzymes that are pumped into the duodenum. A duct also connects the duodenum to the gallbladder.

Multiple endocrine neoplasia type 1 (MEN 1) is a disorder that causes the development of tumors in the stomach, endocrine glands, and parts of the small intestine. When tumors develop in the ...