Mycology: morphology

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Author:
HLW
ID:
65145
Filename:
Mycology: morphology
Updated:
2011-02-08 22:19:21
Tags:
mycology
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Description:
Mycology: morphology
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  1. General fungal forms
    • filamentous
    • branching
  2. Agar used
    Sabouraud agar
  3. Fungal cultures are left for _____ @ ____C
    • 1-4 wks
    • 25C
  4. Mycelium-
    Mass of hyphae
  5. Dimorphic-
    having yeast form and mycelial form
  6. Conidia-
    spores
  7. Arthroconidia/arthrospores-
    Spores from hyphal fragmentation
  8. Geophilic-
    soil is natural habitat
  9. Zoophilic-
    Animals are the source
  10. Yeast form @ ___C and Mycelial form @ ___C
  11. Ringworm fungi-
    Dermatomycoses
  12. Yeast and yeat like fungi (2)
    • Candida
    • Malassezia
  13. SQ Mycoses-
    sporotrichosis
  14. Systemic Mycoses (5):
    • Aspergillosis
    • Blastomycosis
    • Histoplasmosis
    • Coccidoidomycosis
    • zygomycosis
  15. Antifungal that is rarely used d/t renal damage
    Amphotericin B
  16. Nystatin is a _______, used for _____
    • Narrow spectrum drug
    • candida
  17. PO Ringworm drug:
    Griseofulvin
  18. Ketoconazole is used....
    systemically a variety of fungal infections
  19. Used to disinfect ares contaminated w/ dermatophytes (3):
    • Sodium hypochlorite
    • Formalin
    • Enilconazole
  20. Topical Tx for dermatophytes (2):
    • Lime Sulfur
    • Imidazole/ketoconazole
    • Natamycin (horses)
  21. Systemis Tc for dermatophytes (3):
    • Griseofulvin
    • itraconazole
    • ketoconazole
  22. Clinical Signs of ringworm:
    • alopecia
    • erythema
    • crusts
  23. Ringworm immunity is associated w/
    DTH
  24. Pathogenesis of dermatomycosis
    • Hyphae in stratum corneum, hair roots
    • Keratinases, elastases and proteases -> hair break
    • Inflammation -> erythema
    • fungus moves to next follicle
    • circular lesion
  25. M. canis infects:
    • Dogs
    • Cats
  26. T Verrucosum infects:
    cattle
  27. T. Equinum infects:
    horses
  28. T Mentagrophytes infects:
    • Dogs
    • Horses
    • Cats
  29. Appearance of M. canis
    spindle shapes macroconidia
  30. Appearance of M. gypseum
    Boat shaped macroconidia
  31. Appearance of T. mentagrophytes:
    Cigar shaped macroconidium + numerous Microconidia
  32. Look for ____ to Dx w/ a SS
    Arthrospores
  33. Look for ___ to Dx w/ a culture
    Macrocinidia
  34. "package of spores"=
    Macroconidia
  35. Trichophyton verrucosum-
    ringworn Vx for cattle

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