An elderly man returns to New York after spending the winter in Arizona.

Subject
Medicine
System
Infectious Diseases

Kathryn

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Jul 29, 2020
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Singapore
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An elderly man returns to New York after spending the winter in Arizona. Over the course of the next several weeks, he develops breathing difficulty, productive cough, and joint pain. He visits his physician, who orders an x-ray of the chest, which reveals infiltrates in the lungs with evidence of granulomas. A PPD test is negative, but a tissue specimen from biopsy reveals a fungus with endospores containing spherules when grown at 37°C and branched hyphae when grown at 25°C. What is the most likely cause of his symptoms?
(A) Aspergillus fumigatus
(B) Blastomyces dermatitidis
(C) Candida albicans
(D) Coccidioides immitis
(E) Histoplasma capsulatum
 
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