Fig. 2. (A) Macro-observation findings at the tumor site (Case 2). No obstruction of the stent was observed due to compression from the lateral side of the tumor, but the stents were deformed into elliptical shapes (arrowheads). (B) Histopathological findings at a non-tumor site (Case 2). Papillary-shaped tumor invasion (arrowheads) into the bile duct between the stent wires (arrow) was observed. H&E stain.

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

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