choledocho-duodenal junction
http://purl.obolibrary.org/obo/UBERON_0015485
Hat part of the duodenal wall traversed by the ductus choledochus, ductus pancreaticus, and ampulla. [ http://medical-dictionary.thefreedictionary.com/choledochoduodenal+junction ]
Synonyms: choledochoduodenal junction