Causes of Chronic Diarrhea - Differential Diagnosis
Osmotic
• Food/Drink: Lactose intolerance, Artificial sweeteners (e.g. sorbitol, high fructose corn syrup)
• Medications: Acarbose, Mg hydroxide, Lactulose
• Laxative abuse
Secretory:
• Microscopic colitis
• Medications: NSAlDs, Colchicine
• Neuroendocrine tumors: Carcinoid syndrome, Gastrinoma (a.k.a. ZE syndrome)
Malabsorptive:
• Celiac disease (a.k.a. "celiac sprue")
• Pancreatic insufficiency: Chronic pancreatitis, Cystic fibrosis
• Tropical sprue
• Medications (a.k.a. "drug-induced enteropathy"): Olmesartan
Hypermotility:
• Irritable bowel syndrome (IBS)
• Hyperthyroidism
Inflammatory - Infectious:
• Viral: AIDS enteritis, CMV
• Mycobacterial: Tuberculosis, MAC
Inflammatory - Non-infectious:
• Inflammatory bowel disease (IBD): Ulcerative colitis, Crohn's disease
• Radiation enteritis/proctitis
- Dr. Eric Strong @DrEricStrong - Strong Medicine https://www.youtube.com/c/EricsMedicalLectures/
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