Peptic Ulcer Disease
H. pylori (70%), NSAIDs (20%). Complications: bleeding (hematemesis, melena), perforation (rigid abdomen, free air), obstruction (pyloric stenosis).
Treatment: PPI + dual antibiotics (amoxicillin + clarithromycin or metronidazole) for 14 days.
IBD
Ulcerative colitis: Continuous from rectum. Pseudopolyps. Toxic megacolon. Treatment: 5-ASA, steroids, azathioprine, biologics.
Crohn: Skip lesions. Transmural. Fistulas, strictures. Any GI tract. Perianal disease.
Acute Pancreatitis
Causes: Gallstones (40%), Alcohol (30%). Scoring: APACHE II, BISAP, Ranson. CT severity index.
Revision history
- 20 September 2026 — Initial publication
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