Mycology

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Author:
ncrook
ID:
213835
Filename:
Mycology
Updated:
2013-06-01 15:00:14
Tags:
Mycology ID
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Description:
Mycology ID
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  1. What organism:
    OTOMYCOSES (2ND MOST COMMON CAUSE OF SWIMMERS EAR)
    Colony morphology: TOP:  WHITE BOTTOM W/ BLACK POWDER ON TOP   REVERSE:  TAN W/ MANY FOLDS
    Microscopic morphology: PHIALIDES COVER THE ENTIRE VESICLE IN ALL DIRECTIONS (RADIATE HEAD) and HYALINE SEPTATE HYPAE
    ASPERGILLUS NIGER
  2. ASPERGILLUS NIGER
  3. What organism:
    ASPERGILLOMA ("FARMER'S LUNG") -- SEVERE REPIRATORY INFECTION CAUSES INFLAMMATORY OR GRANULOMATOUS LESIONS IN THE LUNGS
    TOP:  POWDERY, DARK GREEN (WHOLE AREA) REVERSE:  YELLOW/GREEN W/ FOLDS IN CENTER
    PHIALIDES COVER ONLY THE TOP 2/3 OF THE VESICLE AND POINT IN THE SAME DIRECTION and HYALINE SEPTATE HYPHAE
    ASPERGILLUS FUMIGATUS
  4. ASPERGILLUS FUMIGATUS
  5. What organism:
    ALLERGIC ASPERGILLOSIS ASTHMA
    Colony morphology: TOP:  CAMOUFLAGE PATTERN IN TE DIFFERENT CIRCLES OF GROWTH
    Microscopic morphology: PHIALIDES COVER THE ENTIRE VESICLE IN ALL DIRECTIONS (RADIATE HEAD) and HYALINE SEPTATE HYPHAE
    ASPERGILLUS FLAVUS
  6. ASPERGILLUS FLAVUS
  7. What organism:
    PULMONARY DISEASE, BUT MAY DISSEMINATE THROUGHOUT THE BODY (CSF & KIDNEYS)
    Colony morphology: TOP:  POWDERY DARK GREEN/BLUE W/ DARK BLUE AREA SURROUNDING, & BROWN PERIMETER
    Microscopic morphology: HYALINE SEPTATE HYPHAE and PHIALIDES AND MICROCONIDIA LOOK LIKE BONES OF THE FEET
    PENICILLIUM
  8. PENICILLIUM
  9. What organism:
    KERATOMYCOSIS and ONYCHOMYCOSIS (NAIL INFECTION IN BURN PATIENTS)
    Colony morphology: TOP:  COTTONY WHITE PERIMETER W/ PURPLE CENTER   REVERSE:  BROWN W/ FOLDS IN CENTER
    Microscopic morphology: BANANA SHAPED MACROCONIDIA
    FUSARIUM
  10. FUSARIUM
  11. What is India ink used to show?
    Cryptococcus neoformans
  12. What type of preparation is used to show Cryptococcus neoformans?
    India ink
  13. What yeast shows chlamydospores with clusters of blastoconidia along the hyphae?
    Candida albicans
  14. What yeast has a positive germ tube?
    Candida albicans
  15. What yeast:
    Produces long-branched pseudohyphae
    Blastoconidia are produced singly or in short chains
    Does NOT produce chlamydospores
    Candida tropicalis
  16. What organism:
    Urease  positive
    Inositol utilization
    Negative for nitrate reduction
    Cryptococcus species
  17. Name the types of candidiasis
    • Thrush (oral cavity)
    • Vulvovaginitis (vagina)
    • Onychomycosis (nail infections)
    • Paronychomycosis (cuticle infections)
  18. What Yeast can:
    Produce a mild to moderate pulmonary infection
    In immunocompromised patients can lead to systemic infections and meningitis
    Also associated with prostate and tissue infections
    Causes crytpcoccosis
    Can be acquired by contack with bat, pigon, or other bird droppings in addition to vegetables, fruit, and milk
    Cryptococcus neoformans
  19. What Yeast:
    Forms cream-colored, smooth colonies on solid media in about a week
    Hyaline hyphae with blastoconidia and arthroconidia are produced
    Urease positive
    Can assimilate some carbs
    Trichosporon species
  20. What yeast forms true hyphae with rectangular arthroconidia?
    Geotrichum candidum
  21. What fungi most common cause of aspergillosis?
    Aspergillus fumigatus
  22. What fungi is an important cause of otomycosis (a superficial mycotic infection of the outer ear canal), characterized by inflammation, pruritus, and scaling?
    Aspergillus niger

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