Dermatophytosis Flashcards
Dermatophytes
Molds capable of parasitizing only keratinized epidermal structures
Microsporum spp
Canis - most common
Gallinae - avian ringworm
Gypseum - soil
Nanum- swine
What is the most common Dermatophyte of domestic animals
Microsporum Canis
Characteristics of microsporium
Thick walled
Multi septate
May occur signally along hyphae
Trichophyton spp
Mentagrophytes - cats, dogs, rodents, humans
Equinum- horses
Verrucosum- cattle
Trichophyton characteristics
Smooth
Thin walled
Circular
No hyphae
How do you get trichophyton
Barber
Cuts
How do you determine Dermatophyte is in a test plate
Plate turns red
Control and treatment for dermatophytoeses
Remove source
Clip hair
Antifungal
Dermatomycoses spp
Malassezia - yeasts
Malassezia characteristics
Peanut shaped
Normal opportunistic microflora
Ear infections
Treatment of dermatomycoses
Correct underlying conditions
Topical anti fungal
Subcutaneous mycoses
Infection deeper into the skin
Associated with trauma
Rarely disseminate
Sporotrichosis
From soil into skin by puncture
See yeast cells in lesions
Localized ulcerating subq nodules and lymphagitis
