Virology USMLE Step 1 Practice Question
A 28-year-old woman with HIV infection presents with progressive blurred vision and floaters. Vital signs: BP 118/76, HR 92, RR 16, Temp 37.2°C, SpO2 98%. Laboratory studies show CD4+ count of 38 cells/μL and CMV PCR positive in aqueous humor. Dilated fundoscopy reveals granular, hemorrhagic infiltrates with a characteristic "cottage cheese and ketchup" appearance in the peripheral retina. She denies photophobia. Which of the following is the most likely diagnosis?
Answer choices
- AAcute retinal necrosis
- BVaricella-zoster virus retinitis
- CCytomegalovirus retinitisCorrect answer
- DProgressive outer retinal necrosis
- EToxoplasma gondii chorioretinitis
- FPneumocystis jirovecii choroidopathy
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