Micro: Fungus/Parasites Flashcards Preview

Clinical Neuro Exam 1 > Micro: Fungus/Parasites > Flashcards

Flashcards in Micro: Fungus/Parasites Deck (21):
0

Main fungal infection in AIDS patients.

Cryptococcus neoformans

1

Fungal classification of C. neoformans and Aspergillus

C. neoformans: Yeast
Aspergillus: Mold

2

Name the 4 dimorphic fungi

Can Have Both Shapes
1. Coccidioides immitis
2. Histoplasma capsulatum
3. Blastomyces dermatitidis
4. Sporothrix (not important for this topic)

3

India Ink Stain

C. neoformans

4

Pigeon and bird poop

C. neoformans

5

Treatment for C. neoformans infection

Amphotericin B + flucytosine
4-6 weeks for immunocompetant
10 weeks for immunocompromised

AIDS patients also need fluconazole for life

6

Spherules

Coccidioides immitis
-desert southwest and valley fever

7

Bird and Bat droppings, Ohio River valley

Histoplasma capsulatum

8

Broad based budding yeast

Blastomyces dermatitidis

9

Fresh water, neti pot

Naegleria fowleri

Primary amoebic meningoencephalitis (PAM)

10

Unique symptom of N. fowleri

Altered sense of smell

11

Diagnosis of N. Fowleri

usually a wet mount prep on autopsy

12

Contact lenses, Granulomatous amoebic encephalitis

Acanthamoeba sp.

13

Bug that causes malaria.

Plasmodium falciparum

14

Diagnostic form of malaria

Gametocyte stage
-cells look like a boomerang is inside them

15

Treatment for malaria

chloroquine

16

Undercooked pork or contaminated cat feces

Toxoplasma gondii

17

Diagnostic feature indicating Toxoplasmosis on CT scan.

Ring-enhanced lesion

18

Tsetse fly

Trypanosoma brucei
-African sleeping sicknesses
-infects blood but causes coma if it infects the CSF

19

Diagnosis for T. brucei

Giemsa stain blood smear

20

Cysticercosis

Taenia solium (pork tapeworm) larvae disseminate to neural tissue and calcify leading to focal symptoms.

#1 cause of seizures world wide