Question 1

Question

A 34-year-old man presents to the emergency department with a 3-day history of high fever, headache, and a productive cough. He recently returned from a construction project near the Ohio River Valley. Chest X-ray shows hilar lymphadenopathy and patchy infiltrates. A bronchoalveolar lavage specimen is sent to the laboratory. A methenamine silver stain of the BAL specimen identifies the causative organism, and culture later grows mold with tuberculate macroconidia.

Accepted Answer

A dimorphic fungus that forms tuberculate macroconidia in its mold phase and small intracellular yeast within macrophages in its tissue phase

Answer

A dimorphic fungus that forms barrel-shaped arthroconidia in its mold phase and spherules filled with endospores in its tissue phase

Answer

A dimorphic fungus that forms broad-based budding yeast in tissue and produces large, rough-walled conidia in its mold phase

Answer

A dimorphic fungus that converts to cigar-shaped yeast in tissue and is classically associated with rose-thorn inoculation injuries

Answer

A thermally dimorphic mold that produces a blue-green colony and causes invasive disease primarily in neutropenic hosts without a true yeast phase

Biofilms — MCQs

Biofilms — MCQs

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