For the IUS Monthly November 2024 Webinar, Dr. Michael Winter (Assistant Professor of Medicine, Dartmouth Hitchcock Medical Center) and Dr. Sanket Patel (Clinical Assistant Professor Rowan-Virtua SOM) present a case on the use of IUS in penetrating Crohn's disease and Dr. Cathy Lu (Assistant Professor of Medicine, University of Calgary) presents cases on the use of IUS in monitoring postoperative Crohn's disease recurrence.