case_images: PMC7668296_01
case_images: Photodynamic therapy (PDT) of an extrahepatic cholangiocarcinoma
  using a digital cholangioscopy to deliver the laser: A) cholangioscopic
  identification of the neoplastic stricture; B) placement of the lighting
  catheter across the neoplastic stricture; C) fluoroscopic control of the
  PDT catheter positioning; D) cholangioscopic appearance during lighting;
  E) repositioning of the fiber after the first lighting; F) final
  fluoroscopic control after the PDT session and plastic stenting.
case_images: 0102-6720-abcd-33-01-e1490-gf3.jpg
case_images: PMC7668296_01_0102-6720-abcd-33-01-e1490-gf3.jpg
case_images: f3
case_images: The procedure was uneventful and had duration of 150 min (Figure 3).