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Old 07-26-2014
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Default 45-year-old woman with progressive facial swelling

A 45-year-old woman comes to the physician because of progressive facial swelling and pain during the past week. She has a 10-year history of poorly controlled type 1 diabetes mellitus. Physical examination shows ecchymoses over the left orbital and periorbital regions with proptosis. There is a necrotic lesion with a black eschar in the left naris. Findings on microscopic examination of material from the lesion include broad, irregularly shaped, nonseptate hyphae with branches at right angles. Which of the following is the most likely cause of the nasal lesion?

(A) Histoplasma capsulatum
(B) Rhizopus oryzae
(C) Sporothrix schenckii
(D) Torulopsis glabrata
(E) Trichophyton rubrum
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Old 07-26-2014
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B
Rhizopus
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I'd choose Rhizopus, for the characteristics given.
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Old 07-26-2014
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Nonseptate hyphae with branches at right angles.

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Old 07-26-2014
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B- 90 degrees angle hyphae, and history of DM
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