What is the role of antigen testing in patients with HIV infection and community-acquired pneumonia (CAP)?

Updated: Oct 31, 2019
  • Author: Stephanie L Baer, MD; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

Answer

Additional uncommon CAP pathogens, such as histoplasmosis, coccidioidomycosis, and cryptococcosis, should also be considered in HIV-positive patients who present with pulmonary infiltrates, with risk stratified according to potential exposure history. Antigen testing (urine antigen for histoplasmosis; serum antigen for cryptococcosis) may be helpful in these cases.


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