Colitis

Differential Diagnosis

• Inflammatory bowel disease
  • Ulcerative colitis
  • Crohn disease
• Infection
  • Bacteria: Campylobacter jejuni, Escherichia coli, Salmonella, Shigella, tuberculosis, Clostridioides difficile
  • Parasites: Entamoeba histolytica
  • Viruses: CMV
• Microscopic colitis
• Ischemic colitis
• Drug-induced colitis, including from NSAIDs, aspirin, PPIs, beta blockers, statins
• Primary immunodeficiency, including CVID
• Radiation colitis