Test 1 Cutaneous Mycosis- DermatoPHYtosis Flashcards
Dermatophytosis is also known as
Ringworm
Dermatophytosis is a form of _______ mycosis
Cutaneous mycosis
T/F
Dermatophytosis is zoonotic
TRUE
What is Dermatomycosis?
A cutaneous infection
caused by yeasts and saprophytic filamentous fungi
that resembles
dermatophytosis
What type of dermatophytes are known as human reservoirs?
**Anthropophilic **dermatophytes
=
human reservoir
What type of dermatophytes are known as
animal reservoirs?
**Zoophilic **dermatophytes
What type of dermatophytes are known as
soil reservoirs?
**Geophilic **dermatophytes
What is the only category of dermatophytes that includes the genus Epidermophyton?
**Anthropophilic **dermatophytes
include
Epidermophyton floccosum
What are the 7 types of fungi
classified as
Anthropophilic Dermatophytes?
- Epidermophyton floccosum
- Trichophyton rubrum
- T. tonsurans
- T. schoenleinii
- T. violaceum
- Microsporum audouinii
- Microsporum megninii
What are the 6 fungi classified as
Zoophilic Dermatophytes?
- Microsporum canis
- M. equinum
- M. gallinae
- Trichophyton mentagrophytes
- T. simii
- T. verrucosum
Geophilic dermatophytes
*only include *members of what
fungal family?
Geophilic dermatophytes
only include
Microsporum
What are the 5 fungi
classified as
Geophilic Dermatophytes?
- M. gypseum
- M. nanum
- M. persicolor
- M. vanbrueseghemii
- M. cookei
The most common dermatophyte found in
catteries
belong to which group?
Zoophilic Dermatophytes
What category of dermatophytes:
cause recurrent ringworm infections
is common of young animals kept in close proximity
include hot, humid conditions, trauma, and poor nutrition as predisposing factors
and
the *conidial survival *depends on moisture?
Zoophilic Dermatophytes
T/F
Zoophilic dermatophyte spores are
heat resistent
FALSE
Geophilic Dermatophyte Spores
are heat resistent
Infections by ________ dermatophytes
are sporadic
and
not readily transmitted between animals
Geophilic dermatophytes
Infection by Geophilic dermatophytes
typically occurs during what season?
Geophilic dermatophyte infections
occur during
AUTUMN
What is the most common dermatophyte of domestic species?
M. canis
Genus microsporum
typically attack
what part of an animal’s body?
Microsporum attack
*hair *and skin
Large, rough, thick-walled macroconidia
that are multiseptate
are characteristic of
what genus of fungi?
Genus Microsporum
have large, rough, thick-walled multiseptate macroconidia
Visually, how do the **macroconidia **of genus Microsporum differ from genus Trichophyton?
The macroconidia
of Microsporum are fusiform to obovate
where as
Trichophyton are cylindrical, cigar-shaped
What are the 4 most common species of genus Microsporum?
- M. canis*
- M. gallinae*
- M. gypseum*
- M. nanum*
What are the 3 most common species of Genus Trichophyton?
- T. mentagrophytes*
- T. equinum*
- T. verrucosum*
Which genus has smooth, thin-walled macroconidia?
Trichophyton
has smooth, thin-walled macroconidia
In which genus are the macroconidia
produced in small numbers
and thus rarely seen?
Genus Trichophyton
Both Microsporum and Trichophyton attack
hair, skin, nails, and claws
Infections caused by _________ spp. are usually more severe because more inflammation is associated with it
**Trichophyton spp. **infections are **more severe **than Microsporum
The circular lesions in Canine Ringworm are up to ____ cm in diameter
2.5 cm lesions in canine ringworm
Canine ringworm is most commonly found on what 3 parts of a dog’s body?
Face
Elbows
Paws
Canine ringworm is most commonly caused by
which 4 species of dermatophytes?
- M. canis*
- M. gypseum*
- T. erinacei*
- T. mentagrophytes*