Dilated common bile duct (CBD) of the same size as the portal vein at the porta was classically described as the “shotgun sign” (Figure 1) [1]. Dilated intrahepatic biliary radicles… Click to show full abstract
Dilated common bile duct (CBD) of the same size as the portal vein at the porta was classically described as the “shotgun sign” (Figure 1) [1]. Dilated intrahepatic biliary radicles within the liver parenchyma adjacent to the portal vein branches also gives the “double barrel shotgun” appearance (Figure 2); it is also known as the “parallel channel sign” or “too many tubes sign” [2]. The double-barrel sign is a highly accurate sign for intrahepatic biliary duct dilatation [3]. The dilated biliary tree and portal vein branches
               
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