Fungi Flashcards

1
Q

What type of fungi are a species of a variety of aseptate fungi, ubiquitous in environment, and affects those with diabetic ketoacidosis and neutropenia? Give an example of a dangerous aggressive one?

A

Mucormycosis do this, an example is

Rhinocerebral mucormycosis: a rapidly progressive disease that needs aggressive debridement and antifungal therapy

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2
Q

List the systemic Mycoses?

A
Candidiasis(also can be superficial) 
Coccidioidomycosis
histoplasmosis
blastomycosis
cryptococcosis
aspergillosis
mucormycosis
pneumocystosis
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3
Q

What is an opportunistic systemic mycoses that is:
Formally classified as a parasite
has an unknown reservoir but a respiratory route
that causes pneumonia with frothy exudate
has a risk factor of low CD4(AIDS) which is commonly life threatening
chest x ray with pulmonary infiltrates
Silver stain=cysts like crushed ping pong balls
is treated with trimethoprimsulfamethoxazole (prophylaxis)

A

Pneumocystis jiroveci

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4
Q

What is an opportunistic systemic mycoses that has:
Filamentous branched septate hyphae
Mold spores in air from PEANUTS GRAINS RICE
Gives u asthma (ige) after inhaled
Makes a fungus ball in your lungs
is associated with TB/cancer
makes you cough up blood because its angioinvasive
makes Aflatoxin which fucks with your liver and can give you cancer

A

Aspergillus fumigatus

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5
Q

What Systemic Mycoses come from bird and bat feces?

A

Histoplasma capsulatum

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6
Q

What systemic Mycoses come from soil, rotten wood and often happens in healthy people?

A

Blastomyces dermatitidis

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7
Q

Which systemic Mycoses comes from soil, causes mild pneumonia and is associated with AIDS?

A

Coccidioides immitus

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8
Q

Where do Histoplasmosis live?

A

in Macrophages

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9
Q

What do Blastomyces look like?

A

Broad Based Buding

BBB

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10
Q

What do Coccidioides look like?

A

they have Spherules

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11
Q

Where are Histoplasma and Blastomyces endemic in the united states?

A

Where the Missisissipppi Drains

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12
Q

What type of Mycoses is NEVER transmitted person to person, causes local lung infections and bloodstream dissemination, is fought off by CELL MEDIATED IMMUNITY and granulomas and can be:
Asymptomatic, Pneumia or Disseminated in terms of symptoms?

A

Systemic Mycoses

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13
Q

How do you diagnose systemic mycoses? What do we always treat?

A

Diagnose with Biopsly (grow on agar to see yeast) you ALWAYS treat Blastomyces

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14
Q

What is an opportunistic, systemic Mycoses that:
is an encapsulated yeast
coccus
from pigeon feces
ass with Meningitis
10% of AIDS patients have it
Fatal w/no treatment
Lumbar puncture to test cerebrospinal fluid
India ink will see capsule
Treated with Amphotericin B and Flucytosine

A

Cyyptococcus neoformans

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15
Q

How does Disseminated Candidiasis get into the body usually?

A

GI tract or IV catheter

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16
Q

List oral Manifestations of candidiasis?

A

Pseudomembranous
atrophic
Angular chelitis
Hyperplastic

17
Q

List Subcutaneous Mycoses?

A

sporotrichosis

18
Q
What Subcutaneous Mycoses is:
a normal soil inhabitant 
commonly comes from rose thorns
dimorphic at 35(yeast) and 25(hyphae)
cigar shaped
can spread to lymphatics
causes painless nodules that become necrotic
treated with ORAL potassium iodide?
A

Sporothrix schenckii

19
Q

List superficial Mycoses

A

Dermatophytosis

Candidiasis

20
Q
What superficial mycoses:
transmitted from person to person
animal to person
and soil to person
secretes Keratinase
Diagnosed with KOH
Fluoresce under UV light
treated with topical azoles
A

Dermatophytoses

21
Q

List examples of Dermatophytoses?

A

Microsporum, Trichophyton, Epidermophyton

22
Q

What do we always target with fungal infections?

A

Beta glucan

Ergosterol