Fungal and Parasitic Infections USMLE Step 1 Practice Question
A 41 year old man from Ohio presents with fever, cough, fatigue, and weight loss. He recently helped clean an old chicken coop. Chest imaging shows bilateral hilar lymphadenopathy and patchy pulmonary infiltrates. Lung biopsy demonstrates small oval yeasts within macrophages. Which of the following organisms is the most likely cause of this infection?
Answer choices
- ACryptococcus neoformans
- BBlastomyces dermatitidis
- CPneumocystis jirovecii
- DCoccidioides immitis
- EHistoplasma capsulatumCorrect answer
- FAspergillus fumigatus
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