Novel metallic stent designed for endoscopic bilateral stent-in-stent placement in patients with hilar malignant biliary obstruction

Novel metallic stent designed for endoscopic bilateral stent-in-stent placement in patients with hilar malignant biliary obstruction Fig. This characteristic allows easier passage of the second stent through the cell. Source for stent: BCM Fig. The tip of the second stent (arrow) was easily passed through the cell without any resistance.