Endoscopic Ultrasound in Guiding Local Resection and Ampullary Preservation of a High-Risk Periampullary GIST

<div>Intraoperative resection. Biliary catheter exiting ampulla.</div>

Case Reports in Gastrointestinal Medicine

Figure 4: Endoscopic Ultrasound in Guiding Local Resection and Ampullary Preservation of a High-Risk Periampullary GIST 