Whenever there is bile duct dilatation, the first priority is to look for obstruction. Obstruction. If there is an obstruction, we first look for gallstones in the bile duct. If there are no gallstones involved, we then look for strictures. The differential diagnosis for a stricture is based on the location.
James alexander Warren. James alexander Warren is a producer and writer, known for Yazoo Women (2015), S E Q U E N C E (2015) and Dreamscaping (2014).
John Warren (surgeon) From Wikipedia, the free encyclopedia. John Warren (July 27, 1753 â April 4, 1815) was a Continental Army surgeon during the American Revolutionary War, founder of the Harvard Medical School and the younger brother of Joseph Warren.