Cholangioscopic differentiation of biliary strictures and polyps.

@article{Nimura1989CholangioscopicDO,
  title={Cholangioscopic differentiation of biliary strictures and polyps.},
  author={Yuji Nimura and Junichi Kamiya and Naokazu Hayakawa and Shigehiko Shionoya},
  journal={Endoscopy},
  year={1989},
  volume={21 Suppl 1},
  pages={351-6}
}
Since April 1977 percutaneous transhepatic cholangioscopy (PTCS) has been carried out in 428 cases comprising 213 cases of malignant disease and 215 benign cases. PTCS is performed through the dilated sinus track of percutaneous transhepatic biliary drainage. When irregularly dilated and tortuous vessels, which we called tumor vessels, are revealed on biliary strictures or polyps, a correct diagnosis of cancer can be made. Benign biliary strictures with or without gallstones, or polypoid… CONTINUE READING