Mycology

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

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

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

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

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

What is India ink used to show?

What type of preparation is used to show Cryptococcus neoformans?

What yeast shows chlamydospores with clusters of blastoconidia along the hyphae?

What yeast has a positive germ tube?

What yeast:
Produces long-branched pseudohyphae
Blastoconidia are produced singly or in short chains
Does NOT produce chlamydospores

What organism:
Urease  positive
Inositol utilization
Negative for nitrate reduction

Name the types of candidiasis

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

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

What yeast forms true hyphae with rectangular arthroconidia?

What fungi most common cause of aspergillosis?

What fungi is an important cause of otomycosis (a superficial mycotic infection of the outer ear canal), characterized by inflammation, pruritus, and scaling?