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Author Archives: Anonymous

The magnification of the ocular lens is 5.

The magnification of the ocular lens is 5.

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Which of the following would be expected to have moist, crea…

Which of the following would be expected to have moist, creamy or glabrous colonies when grown on artificial media?

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In which of the following specimens is it important to perfo…

In which of the following specimens is it important to perform a direct examination for fungi in addition to setting up a fungal culture?

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Microscopic examination of a fungus cultured from a patient…

Microscopic examination of a fungus cultured from a patient with tinea pedis showed large, smooth, thin-walled, club-shaped macroconidia appearing singly and in clusters of two to three from the tips of short conidiophores.  The colonies did not produce microconidia.  What is the most likely identification?

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A 45-year-old pigeon breeder in Washington State, who recent…

A 45-year-old pigeon breeder in Washington State, who recently received a renal transplant complained to his physician of headache, dizziness, blurred vision, and a stiff neck.  Specimens of purulent cerebrospinal fluid were sent to your microbiology laboratory (pretend you’re living in Washington).  A carefully examined Gram stain of the CSF sediment was negative; however, on brain heart infusion agar with blood at 30oC, a white, mucoid yeast rapidly grew.  The organism also grew on Niger seed (birdseed) agar with a maroon-brown colony appearance. Which disease do you suspect?

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Pneumocystis differs from other fungi in that it

Pneumocystis differs from other fungi in that it

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This organism, commonly known as desert or valley fever,  is…

This organism, commonly known as desert or valley fever,  is specific to the San Joaquin Valley region of California.

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The yeast phase of which dimorphic fungus shows a large pare…

The yeast phase of which dimorphic fungus shows a large parent yeast cell surrounded by smaller budding yeast cells (mariner’s wheel)?

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Zygomycetes are rapidly growing, airborne saprobes.  In clin…

Zygomycetes are rapidly growing, airborne saprobes.  In clinical specimens they

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Causative agent of Gilchrist disease found in parts of Afric…

Causative agent of Gilchrist disease found in parts of Africa and in the Mississippi and Ohio River basins in the US

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