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).
Not to be confused with Alexander Witt. Alex Witt (born Alexandra E. Witt, April 9, 1961) is an American news anchor who currently hosts the television news programs MSNBC Live and Morning Joe First Look on MSNBC. Witt joined the network in January 1999. 1 Early life and education.