How is cryptococcal chorioretinitis in HIV infection diagnosed?

Updated: Jun 12, 2019
  • Author: Robert A Copeland, Jr, MD; Chief Editor: Andrew A Dahl, MD, FACS  more...
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Perform a detailed history and ophthalmologic examination for diagnosis of cryptococcal chorioretinitis. Diagnosis of cryptococcal chorioretinitis mostly is based on the clinical findings. A diagnostic vitreous tap may be performed, and the samples are examined by direct smear using India ink and cultured on Sabouraud agar at 37°C. Organism growth often takes place within 24-48 hours, producing mucoid, cream, or pink colonies.

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