Aspergillosis is recognized in tissue by the presence of a. Metachromatic granules b. Psuedohyphae c. Septate hyphae d. Budding cells
Fungi often colonize lesions due to other causes. Which of the following is least likely to be present as colonizer a. Candida b. Sporothrix c. Mucor d. Aspergillus
A girl who pricked her finger while pruning some rose bushes develops a local pustule that progresses to an ulcer. Several nodules then develop along the local lymphatic drainage. The most likely agent is a. Aspergillus fumigatus b. Sporothrix schenckii c. Cryptococcus neoformans d. Candida albicans
Immunocompromised persons are suffering from several fungal diseases. Which of the following is the least frequently associated a. Cryptococcus neoformans b. Aspergillus fumigatus c. Malassezia furfur d. Mucor species
Each of the following statements concerning Cryptococcus neoformans is correct EXCEPT a. Its natural habitat is the soil, especially associated with pigeon feces b. Budding yeasts are found in the lesions c. The initial site of infection is usually the lung d. Pathogenesis is related primarily to the production of exotoxin A.
Fungal cells that reproduce by budding are seen in the infected tissues of patients with a. Candidiasis, cryptococcosis, and sporotrichosis b. Mycetoma, candidiasis, and mucormycosis c. Tinea corporis, tinea unguium, and tinea versicolor d. Sporotrichosis, mycetoma, and aspergillosis
Which one of the following is not the characteristics of histoplasmosis a. Person to person transmission b. Specific geographic distribution c. Yeasts in tissue d. Mycelial phase in the soil
Infection with dermatophyte is most often associated with a. intravenous drug abuse b. inhalation of the organism from contaminated bird feces c. adherence of the organism to perspiration moist skin d. fecal-oral transmission
Each of the following statements concerning Candida albicans is correct except a. C. albicans is a budding yeast that forms pseudohyphae when it invades tissue b. C. albicans causes thrush c. C. albicans is transmitted primarily by respiratory aerosol d. Impaired cell-mediated immunity is an important predisposing factor to disease
Answers Key (MCQ Mycology) 1. a (Histoplasma capsulatum) 2. c (septate hyphae) 3. b (Sporothrix) 4. b (Sporothrix schenckii, it causes rose gardener’s disease) 5. c (Malassezia furfur) 6. d (incorrect statement is: pathogenesis is related primarily to the production of exotoxin A.) 7. a (candidiasis, cryptococcosis, and sporotrichosis) 8. a (person to person transmission) 9. c (adherence of the organism to perspiration moist skin) 10. c (incorrect statement is: C. albicans is transmitted primarily by respiratory aerosol)
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