Fig. 4. (A) Histopathological findings of a non-tumor site of the extrahepatic bile duct (Case 5). The stent wire (arrows) within the extrahepatic bile duct (“B”) pushed aside the submucosal layer and embedded into the fibromuscular layer, but no compression of the hepatic artery (“A”) was observed. (B) Histopathological findings in the tumor site of the extrahepatic bile duct (Case 4). The stent wire (arrows) within the extrahepatic bile duct (“B”) pushed aside the submucosal layer and embedded into the fibromuscular layer, but no compression of the portal vein (“P”) was observed. (C) Histopathological findings at a non-tumor site of the extrahepatic bile duct (Case 4). The stent wire (arrows) expanded to the fibrous tissue in the hilum, but no compression necrosis of the hepatic cells (“H”) was observed. (A–C) H&E stain.

Int J Gastrointest Interv 2019;8:82~86 https://doi.org/10.18528/ijgii180045

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