Cutaneous and subcutaneou mycoses

Dermatophytes cause __________ which is also known as ________

• dermatophytoses

• ringworm

Dermatophytoses primarily affects the _______ structures of the body

keratinized epidermal

Dermatophytes germinate and grow in the ___________

stratum corneum

What determines the virulence of dermatophytes?

proteolytic enzymes

Dermatophytes can be characterized as what types?

• geophilic

• zoophilic

• anthropophilic

Zoophilic dermatophytes generally do not cause outbreaks among ________

humans

What are the common dermatophytes of animals

• Microsporum canis

• Microsporum gypseum

• Trichophyton mentagrophytes

The common genus of dermatophytes that infect large animals are ______

Trichophyton

The most common cause and natural host of this ring worms in cats is ___________

microporum canis

Microsporum canis can be sporadically _________

zoonotic

The clinical signs of microsproum canis in cats and dogs tends to be __________

noninflammatory with scaling and crusting

This is the no 1 dermatophyte infecting horses in the southern US

microsporum gypseum

The most common dermatophyte in horses world wide is

T. equinum

Clinical signs of Microsporum gypsum tend to be _________

inflammatory and suppurative

What are the most common Trichophytons in horses?

• T. equinum

• T. mentagrophytes

The natural host of T. mentagrophytes are __________

rodents

The clinical signs of T.mentagrophytes tend to be __________

inflammatory

the best way to diagnose ring worm/dermatophytoses would be to use a _________ to pick up the _______ metabolites

• wood lamp

• tryptophan

What would you use to laboratory diagnose what fungi had infected the animals

• microscopic examination

• culture

• molecular techniques

Microsporum canis appear as a _________ with more than ______ septations microscopically

• macroconidia

• 6

Microsporum gypseum appears as a ________ with _________ septations on average microscopically

• macroconidia

• 4-6

Trichophyton mentagrophytes appears as as both ________ and _________

• macroconidia

• microconidia

another cutaneous mycoses caused by __________ is known as otitis and dermatitis

Malassezia

Malassezia pachydermatis causes __________ and is an _________ pathogen of animals and humans

• otitis

• opportunistic

Malassexia pachydermatis thrives in the ear due to its ________ nature and abudance of wax present

lipophilic

Malassezia pachydermatis is a _______ and reproduced by budding

yeast

On cytology Malassezia pachydermatis looks like a __________

shoe print

What are the two main causes of subcutaneous mycoses

• Sporotrichosis

• Oomycosis(pythiosis)

Sporotrichosis is caused by ________

S.schnekii

S.schnekii typically enters through an _________ and causes relatively superficial _________

• open wound

• lesions

Diagnosis of S.schnekii is typically done through __________

cytology

S.schnekii is ________ and takes _______ form inside the body but ______ from when cultured allowing that to act as a diagnostic indicator

• dimorphic

• yeast

• mold

Chronic but non healing granulomas are indicative of what mycoses

Pythiosis

In horses pythiosis manifests as __________ but in dogs it remains mostly in the _________

• lesions

• GI tract

the causetive agent of pythiosis _________ can generally be found in the south near _______

• pythium insidiosum

• water

technically pythium insidiosum is not a fungus and is considered an _________

Oomycete

diagnosis of pythiosis requires __________ specifically _______

• lab testing

• Elisa