Mycology

Question 1

Malassezia furfur

Answer 1

spaghetti and meatball appearance. Type of commensal

Question 2

Cryptococcus neoformans

Answer 2

encapsulated. Fried egg appearance in brain.
Affects lungs first. Only systemic mycoses that is NOT dimorphic

Question 3

Blastomyces dermatitidis

Answer 3

Single budding. Figure 8 nucleus

Question 4

Paracoccidioides brasiliensis

Answer 4

Multiple budding. Lesion on face.

Question 5

Histoplasma capsulatum

Answer 5

Intracellular fungus. Fingerlike wall ornamentation (spore)

Question 6

Candida

Answer 6

Can have mold/yeast form at 37 degrees. Commensal
Treatment: oral and vaginal: Nystatin or Clotrimazole - topically
systemic: amphoterivin, keto conazole - oral / IV

Question 7

Aspergillus

Answer 7

Filamentous mold. Mainly caused by A. Fumigatus
A. Flavus and A. Parasitivus produce aflatoxins (family of carcinogenic toxins)

Question 8

Pneumoncystis Tiroveci

Answer 8

Yeast-like. Occur in ppl with AIDS. Lacks ergosterol.