Mycology E2, I

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HLW
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67846
Filename:
Mycology E2, I
Updated:
2011-03-11 20:20:24
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Mycology
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Mycology E2, I
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  1. Agent usually responsible for Apergillosis
    A. Fumigatus
  2. Apergillosis causes...
    ____ in chicks
    ____ in cattle
    ____ in horses
    ____ in dogs
    • Brooder Pneunomnia in chicks
    • Mycotic Abortion in cattle
    • Gutteral pouch mycosis/keratomycosis in horses
    • Nasal Aspergillosis in dogs
  3. Dx of Aspergillosis
    • Deep Scrape (KOH mount)
    • Radiograph
    • Rhinoscopy
    • Culture
    • Sereology test
  4. Medium used to culture Aspergillosis
    SAB
  5. Tx for systemic aspergillosis in horses:
    • Itraconazole +
    • Local Ketoconazole
  6. Tx for aspergillosis keratitis in horses:
    Netamycin or Miconazole
  7. Tx for nasal aspergillosis in dogs:
    • Clotrimazole
    • (Fluconazole 2nd
  8. Yeast infections are found where on the body
    • Skin
    • MM
  9. Three most important yeasts:
    • Candida
    • Cryptococcus
    • Malassezia
  10. Other names for Candida albicans
    • Candidiasis
    • Moniliasis
    • Thrush
  11. Candida albican infections occur where in the body?
    Alimentary Tract
  12. Infectious part of candidae, which is found in tissues
    Hyphae
  13. Candidiasis albicans causes...
    ___ in dogs and cats
    ___ in young animals
    ___ in poultry
    ___ in horses
    • Mycotic Stomatitis & Genital candidiasis in dogs and cats
    • Enteritis in young animals
    • Crop Mycosis (thrush) in poultry
    • Metritis & vaginitis in horses
  14. Appearance of tissue infected with Candida albicans (macro)
    white plaques
  15. What induces Candida albican infections in young animals?
    Prolonged Ab tx
  16. Candida albicans takes on what form within the tissues
    filamentous
  17. Pathogenesis of Candida sp.
    • Adheres to mm
    • pseudohyphae invade epithelium
    • pseudomembranous ulcerative inflammation
  18. Dx of Candida sp
    • KOH wet mount or Gram Stain (budding yeast)
    • Culture
    • Latex agglutination
  19. Tx for Candida sp
    • Topical Nystatin
    • Oral Nystatin (GI overgrowth)
    • ketoconazole
  20. What type of yeast is found in pigeon droppings?
    Cryptooccus neoformans
  21. Habitat for Cryptococcus neoformans
    • soil
    • pigeon droppings
  22. Pathogenesis of Cryptococcus neoformans
    • Airborn
    • Nasal granulomas
    • paranasal sinuses
    • hematogenous dissemination
  23. Symptoms for Cryptococcus neoformans
    • Sneezing
    • Snuffling
    • mucopurulent/hemorrhagic nasal discharge
  24. Dx for Cryptococcus neoformans
    • Wet mount
    • Culture
    • Agg test
  25. Tx for Cryptococcus neoformans
    • Itraconazole
    • Fluconazone
    • (keto not very effective)
  26. Crytococcus virulence factor:
    antiphagocytic capsule
  27. What remains in yeast form while in hsot and in environment
    Cryptococcus neoformans
  28. Symptoms of Cryptococcus neoformans in cats
    • Lesions that spread from sinuses, to skin then eyelid
    • Capsular mass in brain= encephalitis
  29. Malassezia pachydermatis causes...
    • ____ in dogs
    • otitis externa & chronic dermtitis
  30. Virulence factor of Malassezia pachydermatis
    lipids that assist in attachment to cell wall
  31. Dx of Malassezia pachydermatis
    • Gram Stain
    • Wet mount
    • SAB and BA cultures
  32. Tx for Malassezia pachydermatis
    • Topical Nystatin or Clotrimazole
    • Ketoconazole for oral dermatitis
  33. Location of Malassezia pachydermatis infections (on the body):
    • Abd
    • interdigits

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