How is histoplasma 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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In the workup, consider toxoplasmosis and multifocal choroiditis with panuveitis as differential diagnoses. Perform a detailed history and complete ophthalmologic examination, including dilated funduscopic examination. Inquiring about possible time spent in the Ohio-Mississippi River Valley area is important. Also ask about possible exposure to fowl. The Amsler grid should be used to assess the central visual field for each eye. Fluorescein angiography may be used to detect a choroidal neovascular membrane.

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