Dermatophytes (PART 2) Flashcards
Epidermophyton floccosum:
- what does it infect
- skin and nails (not hair) … Especially tinea cruris
Trichophyton violaceum:
- colonies
Purple (violet-violaceum)
Epidermophyton floccosum:
- colonies
Tan to yellowish to khaki
Epidermophyton floccosum:
- macro and microconidia
Macro: smooth and thin-walled, club shaped (beavers tail), 2 to 4 celled
Micro: NONE!!
Epidermophyton floccosum:
- how do you kill it?
Killed by refrigeration
Microsporum:
- infections involve what?
only hair and skin
Microsporum canis:
- number one found in what?
Dogs and cats
Microsporum canis:
- Color of reverse
Bright yellow (with continuous growth)
Microsporum canis:
- microscopic evaluation
Walls are thick and rough, consisting of 3 to 15 cells and having a curved tip
Microsporum canis:
- Woods lamp reaction
Yellow green fluorescence
Microsporum canis:
- what kind of infection in the hair
- Ectothrix Infection (outside of hair)
Microsporum gypseum:
- _______ fungus, rare in humans
Soil
Microsporum gypseum:
- colonies
Powdery, buff/cinnamon colored
Microsporum gypseum:
- reverse
Yellow/orange/brown
Microsporum gypseum:
- microscopic appearance
- macroconidia: ellipsoidal with blunt ends, thin cell wall two to seven cells