1. Primary squamous cell carcinoma of the bile duct diagnosed by transpapillary cholangioscopy: case report and review 
David Gatof, M.D., Yang K. Chen, M.D., Raj J. Shah, M.D. 
Gastrointestinal Endoscopy 
Volume 60, Issue 2, Pages (August 2004)
DOI: /S (04)
Copyright © 2004 American Society for Gastrointestinal Endoscopy Terms and Conditions

2. Figure 1
Cholangiogram demonstrating shelf-like stricture of common hepatic duct, with dilation of right and left main hepatic ducts.
Gastrointestinal Endoscopy  , DOI: ( /S (04) )
Copyright © 2004 American Society for Gastrointestinal Endoscopy Terms and Conditions

3. Figure 2
A, Fluoroscopic view of cholangioscope exiting accessory channel of duodenoscope and biopsy forceps (circle) exiting cholangioscope. B, Biopsy forceps used with cholangioscope.
Gastrointestinal Endoscopy  , DOI: ( /S (04) )
Copyright © 2004 American Society for Gastrointestinal Endoscopy Terms and Conditions

4. Figure 3
A, Photomicrography of biopsy, showing squamous carcinoma (H&E, orig. mag. ×60). B, Photomicrograph of biopsy, confirming diagnosis of squamous carcinoma (pancytokeratin stain, orig. mag. ×40).
Gastrointestinal Endoscopy  , DOI: ( /S (04) )
Copyright © 2004 American Society for Gastrointestinal Endoscopy Terms and Conditions

5. Figure 4
Percutaneous cholangiogram 3 months after brachytherapy, showing improvement in common hepatic duct stricture.
Gastrointestinal Endoscopy  , DOI: ( /S (04) )
Copyright © 2004 American Society for Gastrointestinal Endoscopy Terms and Conditions