A 38-Year-Old Man Is Undergoing Treatment for Acute Myeloid Leukemia

A 38-year-old man is undergoing treatment for acute myeloid leukemia.  Initially, he had fevers and reported being lethargic and fatigued all the time.  However, of late, he has noted increasingly severe right-sided headaches.  He describes the pain to be throbbing in nature and located behind his right eye.  He also has associated nasal stuffiness.  The patient has no prior history of allergies.  Physical examination reveals right-sided proptosis and periorbital tenderness.  Biopsy of the right maxillary sinus mucosa reveals the following: Which of the following is the most likely cause of this patient's condition?

A) Malassezia furfur
B) Microsporum canis
C) Rhizopus species
D) Aspergillus fumigatus
E) Candida albicans
F) Cryptococcus neoformans
G) Blastomyces dermatitidis
H) Histoplasma capsulatum
I) Coccidioides immitis
J) Sporothrix schenckii

Correct Answer:

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