1. Bouveret syndrome: a tough nut to crack
Ijlal Akbar Ali, MD, Sultan Mahmood, MD, William M. Tierney, MD 
VideoGIE 
Volume 4, Issue 3, Pages (March 2019)
DOI: /j.vgie
Copyright © 2018 American Society for Gastrointestinal Endoscopy Terms and Conditions

2. Figure 1
CT scan demonstrating choledochoduodenal fistula (yellow arrow) and the large 3-cm gallstone (red arrow).
VideoGIE 2019 4, DOI: ( /j.vgie )
Copyright © 2018 American Society for Gastrointestinal Endoscopy Terms and Conditions

3. Figure 2
Successful endoscopic removal of gallstone. A, Gallstone impacted in duodenal bulb with fistula at 5’o clock position. B, Electrohydrolithotripsy probe used to fracture stone. C, Fistulous connection demonstrating (yellow arrow) after complete removal of stone.
VideoGIE 2019 4, DOI: ( /j.vgie )
Copyright © 2018 American Society for Gastrointestinal Endoscopy Terms and Conditions