Fungal and Parasitic Infections USMLE Step 1 Practice Question
A 35-year-old woman from Arizona presents with progressive dyspnea, cough, and pleuritic chest pain after recent desert hiking. Vital signs: HR 98/min, RR 22/min, BP 118/76 mmHg, temperature 37.8°C, SpO2 94% on room air. Chest X-ray reveals hilar lymphadenopathy with nodular infiltrates. Serum complement fixation antibodies are positive at 1:32 dilution. CBC shows mild lymphocytosis; blood cultures remain negative. Which of the following is the most likely diagnosis?
Answer choices
- ACryptococcosis
- BBlastomycosis
- CAspergillosis
- DHistoplasmosis
- ECoccidioidomycosisCorrect answer
- FTuberculosis
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