Difference between revisions of "Yeast-like fungi"
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==Candidosis== | ==Candidosis== | ||
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| + | *Caused by [[Fungi|''Candida'' spp.]] | ||
| + | *Noramlly present on skin and in [[Alimentary - Anatomy & Physiology|GI tract]] | ||
| + | *Immunocompromised animals may show symptoms | ||
| + | *Usually lesions on mucous membranes and at mucocutaneous junctions | ||
| + | *Grossly: | ||
| + | **Exudative, papular, pustular to ulcerative dermatitis | ||
| + | **Stomatitis and otitis externa may develop | ||
| + | *Microscopically: | ||
| + | **Spongiotic neutrophilic pustular inflammation | ||
| + | **Parakeratosis | ||
| + | **Ulcerations | ||
| + | **Superficial exudate containing organisms | ||
==Cryptococcosis== | ==Cryptococcosis== | ||
Revision as of 16:58, 23 April 2009
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This article is still under construction. |
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Candidosis
- Caused by Candida spp.
- Noramlly present on skin and in GI tract
- Immunocompromised animals may show symptoms
- Usually lesions on mucous membranes and at mucocutaneous junctions
- Grossly:
- Exudative, papular, pustular to ulcerative dermatitis
- Stomatitis and otitis externa may develop
- Microscopically:
- Spongiotic neutrophilic pustular inflammation
- Parakeratosis
- Ulcerations
- Superficial exudate containing organisms
Cryptococcosis
Geotrichosis
Malassezia pachydermidis
- Caused by Malassezia pachydermatis
- Yeast, normally present in external ear canal and skin
- Clinical disease may cause yeast to proliferate and cause infection
- Grossly:
- Regional lesions: muzzle, ears, interdigital, perianal
- Or generalised disease
- Erythematous, hyperpigmented, lichenified and scaly lesions with alopecia
- Microscopically:
- hyperkeratosis, parakeratosis
- Spongiotic pustular dermatitis
- Acanthosis
- Organisms are usually present, minimum 3-5 yeasts per high-power field must be found to imply cause of disease
Rhodotorula
- Rhodotorula minuta and R. rubra
- Canine ear infections
- Equine uterus
- Seldom seen in animal infections
Torulopsis glabrata
- Commensal in animals and is found in the soil
- Implicated in cases of:
- Pyelonephritis, pneumonia, septicaemia and meningitis (humans)
- Mastitis and abortion in cattle
- Systemic infection of monkeys and dogs
Trichosporonosis
- Found in soil
- Deuteromycetes yeast
- Trichosporonosis beigelii
- Implicated in feline nasal granuloma, skin infections in horses and monkeys, mastitis in cattle and sheep and in feline bladder infections
- T. capitum implicated in bovine mastitis
- Cryptococcus neoformans causes granulomatous rhinitis in cats, see respiratory infections
- Candida is an opportunistic pathogen at mucus membranes, causing thrush.
- Blastomyces dermatitidis in blastomycosis in lungs
- Histoplasma capsulatum in histoplasmosis in lungs
- Candida spp. in candidiasis
- Malassezia pachydermis in malassezia dermatitis