1. Biliary Stricture and Negative Cytology: What Next?
Gregory A. Coté, Stuart Sherman 
Clinical Gastroenterology and Hepatology 
Volume 9, Issue 9, Pages (September 2011)
DOI: /j.cgh
Copyright © 2011 AGA Institute Terms and Conditions

2. Figure 1
Cholangiography demonstrates irregularity of the upper common hepatic duct and focal stricture at the hilum (arrow).
Clinical Gastroenterology and Hepatology 2011 9, DOI: ( /j.cgh )
Copyright © 2011 AGA Institute Terms and Conditions

3. Figure 2
Suggested diagnostic algorithm for patients with an indeterminate stricture and absence of a discrete mass on cross sectional imaging. ¥In patients with a high clinical suspicion of malignancy, consider early surgical consultation. †Defined as <2 cm from the hepatic confluence.
Clinical Gastroenterology and Hepatology 2011 9, DOI: ( /j.cgh )
Copyright © 2011 AGA Institute Terms and Conditions