Mycology/Parasitology USMLE Step 1 Practice Question
A 45-year-old man with COPD presents with hemoptysis and fever (38.2°C). Vital signs show BP 128/82, HR 98, RR 22, SpO2 88% on room air. Chest X-ray reveals a cavitary lesion in the right upper lobe. Sputum cultures grow a mold with V-shaped septate hyphae and acute-angle branching. WBC 11,500/μL. He denies recent antifungal therapy. Which of the following is the most likely diagnosis?
Answer choices
- AAspergillomaCorrect answer
- BTuberculosis
- CBlastomycosis
- DHistoplasmosis
- ELung abscess from Staphylococcus aureus
- FInvasive aspergillosis with angioinvasion
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