LAUSR

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