Provides information about peptic ulcers, open sores that penetrate the mucous membrane of the stomach (gastric ulcers) or duodenum (duodenal ulcers).
Information includes Helicobacter pylori, a stomach bacterium responsible for more than 50% of peptic ulcers, and Zollinger-Ellison Syndrome, responsible for tumors in the pancreas and/or duodenum that cause increased production of gastrin and lead to peptic ulcers.