Gastroduodenal ulcer. Definition

Medical Definition: gastroduodenal ulcer

Ulcer that sits in the mucosa near the pylorus, or in the gastric or duodenal (but may also be located, although less frequently, in any other region of the gastroduodenal mucosa). Acute ulcer usually affects only the mucosa chronicle deepens, including the submucosa and muscular. The main cause is the action of gastric secretion (pepsin and hydrochloric acid) on the mucosa weakened by the action of Helicobacter pylori or by decreased secretion of mucus, etc.

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