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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Saccular diveiculum of extrahepatic bile duct in choledochal cyst is classified as
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The correct answer is  Type 1b -saccular dilatation of extrahepatic biliary tree, Type 2-diveiculum of extrahepatic biliary tree Type 3-cystic dilatation of intraduodenal pa of CBD Type 4- dilatation of multiple pas of an extrahepatic biliary tree, dilatation of intrahepatic and extrahepatic biliary tree. Reference SRB edition 5. page637