Double-balloon enteroscopy enabled the diagnosis of duodenal adenocarcinoma in a patient with Roux-en-Y gastric bypass surgery presenting with chronic anemia
Digestive Disease Institute (A.S., S.S.M., B.R.U., M.R.S.) Department of Gastroenterology and Hepatology, Department of Anatomic Pathology (T.W.B.), Cleveland Clinic Foundation, Cleveland, Ohio, USA