№ 3Gastroenterology14 min read
Gastritis, functional (nonulcer) dyspepsia
1. Big picture
This topic has two related but different concepts:
| Concept | Core idea |
|---|---|
| Gastritis | Histological inflammation of the gastric mucosa, most often due to Helicobacter pylori, autoimmune gastritis, or chemical/NSAID injury |
| Functional dyspepsia / nonulcer dyspepsia | Chronic upper abdominal symptoms with no structural disease explaining them, after appropriate evaluation |
Exam sentence: Do not call every epigastric pain “gastritis.” True gastritis is a mucosal inflammatory diagnosis, while functional dyspepsia is a symptom-based functional disorder after excluding ulcer, cancer, reflux, biliary disease, and other organic causes.
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