Posted: July 16th, 2017

The second patient presented with leukemia and an erythematous cutaneous lesion. Biopsy of the lesion revealed septate hyphae, swollen hyphal elements, and hyphae with bizarre dilatations. What is the most probable etiology

Two patients were admitted to a major medical center in the
southwestern United States. The first patient presented with chronic
sinusitis. Hematoxylin and eosin stains of debrided material
revealed granulation tissue, chronic inflammation, and noninvasive,
brownish septate hyphae. The second patient presented with
leukemia and an erythematous cutaneous lesion. Biopsy of the
lesion revealed septate hyphae, swollen hyphal elements, and
hyphae with bizarre dilatations. What is the most probable etiology
for both patients?
A. Aspergillus species
B. Rhizopus species
C. Bipolaris species
D. Drechslera species