Saowanee Ngamruengphong, MD, from the Department of Medicine and Division of Gastroenterology and Hepatology at the Johns Hopkins Medical Institution in Baltimore, Maryland, USA describes this VideoGIE case, "Endoscopic reversal of gastric bypass for severe malnutrition after Roux-en-Y gastric bypass surgery." A 38-year-old woman who had undergone Roux-en-Y gastric bypass surgery was admitted with ongoing …