DDx Diarrhea in AIDS patients

Diarrhea in HIV/AIDS

DDx
  • Viral:
    • CMV colitis, also causes CMV esophagitis
  • Bacterial:
    • Campylobacter, Salmonella, Shigella, Clostridium difficile, Mycobacterium avium complex (MAC), tuberculosis
  • Protozoal:
    • Cryptosporidium (no real treatment available)
    • Entamoeba histolytica (amoebic dysentery, look for liver abscess as well)
    • Giardia (watery diarrhea, often prolonged, with bloating, gas and malabsorption; upper GI symptoms w/ lower GI symptoms; risk factors: anal sex and drinking "pure" mountain water)
    • Isospora, microsporidia
  • HIV-associated malabsorption

Posted by USMLE252
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1 comment:

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