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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
Further Links
- 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