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Variable pattern of arterial supply to bile duct: [A] Marginal arteries are not formed. Bile ducts are supplied only by the epicholedochal plexus of Saint. The plexus is formed by branches from PSPDA, PHA and Cystic arteries. [B] Marginal arteries are not formed. A single epicholedochal artery supplies extrahepatic bile ducts. The epicholedochal artery is formed by contributions from cystic A., PSPDA, RHA and LHA.
