The minor duodenal papilla, which is a small elevation located in the second part of the duodenum, also known as the descending duodenum or the second portion of the small intestine, has several synonyms. One of the synonyms for the minor duodenal papilla is the accessory papilla. This name derives from the fact that it serves as an accessory to the main papilla, which is the major duodenal papilla. Another synonym for the minor duodenal papilla is the papilla of Santorini, named after the Greek physician Giovanni Domenico Santorini, who first described it in the 18th century.