HIV/AIDS: gastrointestinal manifestations

Gastrointestinal manifestations of AIDS are protean and can be broadly divided into opportunistic infections and tumors:

Infections

• viral 
  • cytomegalovirus (CMV)
  • herpes simplex virus (HSV)
  • primary infection with HIV
• fungal
  • candidiasis
  • histoplasmosis
• bacterial
  • tuberculosis
  • mycobacterium avium complex (MAC)
  • bartonella henselae: hepatic peliosis
• protozoan 
  • cryptosporidiosis
  • isospora
  • pneumocystis jiroveci

Tumors

• Kaposi sarcoma
• gastrointestinal lymphoma