RT Book, Section A1 Gratton, Matthew C. A2 Cline, David M. A2 Ma, O. John A2 Cydulka, Rita K. A2 Meckler, Garth D. A2 Handel, Daniel A. A2 Thomas, Stephen H. SR Print(0) ID 56272931 T1 Chapter 41. Peptic Ulcer Disease and Gastritis T2 Tintinalli's Emergency Medicine Manual, 7e YR 2012 FD 2012 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-178184-8 LK accessemergencymedicine.mhmedical.com/content.aspx?aid=56272931 RD 2024/03/29 AB Peptic ulcer disease (PUD) is a chronic illness manifested by recurrent ulcerations in the stomach and duodenum. Acid and pepsin are crucial for ulcer development, but the great majority of ulcers are directly related to infection with Helicobacter pylori or nonsteroidal anti-inflammatory drug (NSAID) use. Gastritis is acute or chronic gastric mucosal inflammation and has various causes. Dyspepsia is upper abdominal discomfort with or without other symptoms that can have various causes or be functional.