5 Written Questions
5 Matching Questions
- Mycetoma (also called madura foot) is a mycosis usually of the
- Other candidal infections include
- One of the most prominent adaptations is the ability to switch from
- Coccidioides immitis has probably lived in the soil for millions of years, but human exposure has been relatively recent coinciding with
- The morphology of Coccidioides immitis is distinctive. It is
- a foot or hand that superficially looks like a tumor. The infection begins when bare skin is pierced by a thorn or sharp plant debris.
- b intertriginous infections in moist areas where skin rubs against skin (i.e. beneath the breasts, in the armpits, and in the groin).
- c hyphal cells typical of the mycelial or mold phase to yeast cells typical of the parasitic phase
- d dimorphic and produces a moist, white to brown colony with abundant, branching, septate hyphae at 25 oC. This mycelial phase produces arthrospores which germinate at 37-40 oC to form the parasitic phase, which is a spherical cell called a spherule. The spherule swells and cleaves internally to form numerous endospores.
- e the encroachment of humans into its habitat
5 Multiple Choice Questions
- ringworm of the scalp
- a dimorphic fungus that forms small, nondescript colonies with scanty, undistinctive spores at room temperature, but develops an unusual yeast form at 37 oC. The yeast form consists of a large, round mother cell with small, narrow-necked buds that sprout from the periphery of the mother cell (appears somewhat like the steering wheel of a ship or spokes of a wheel).
- ringworm of the fingernails or toenails
- virulence of all fungal pathogens
- predictable pattern that coincides with the pathogen's adaptation to the specific climate , soil, or other factors of a relatively limited geographic region.
5 True/False Questions
Some fungal pathogens exist in a category between true pathogens and → opportunists
paracoccidiomycosis infections occur where in the body? → Most infections occur in the lungs or skin; and most are benign, self-limited events that go completely unnoticed. In a small minority of patients, the pathogen invades the lungs, skin and mucous membranes (especially of the head), and lymphatic organs
White Piedra is caused by → Trichosporon beigelii.
Blastomyces dermatiditis is the etiologic agent of → paracoccidiomycosis (also called paracoccidioidal granuloma or South American blastomycosis).
Cryptococcus neoformans is associated with → very common fungus called Sporothrix schenkii