Fig. 2.

Intra Intraluminal radiofrequency ablation and double stent-by-stent deployment. a, b MRCP and contrast-enhanced CT showed perihilar cholangiocarcinoma presented malignant obstructive jaundice. c–e By adding a hard-exchange guide wire and sending into the ablation catheter, radiofrequency ablation (red arrow) was performed on the left and right bile duct stenosis segment. f, g After balloon expansion, the uncovered metal stent was implanted, and angiography showed that the stent was expanded well, and the common bile duct was restored unobstructed