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.
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Warren Buffett. Warren Edward Buffett (/ËbÊfáµ»t/; born August 30, 1930) is an American business magnate, investor, and philanthropist. He is considered by some to be one of the most successful investors in the world, and as of March 2017 is the second wealthiest person in the United States with a total net worth of $78.7 billion.