Yeast/Mold

Question 1

Blastomyces dermatitis

Answer 1

broad-based bud, bud scars

Question 2

Saccharomyces cerevisiae

Answer 2

fungemia, UTI, acid-fast stain, in absence of N and no fermentable sugar form ascospore

Question 3

Rhodotorula mucilagonisa, glutinis, minuta

Answer 3

mucoid capsule, blastoconidia no pseudo

Question 4

Saprochaete capita

Answer 4

Arthoconidia, neutropenia, mucus membranes

Question 5

Candida

Answer 5

Onychomycosis, pulmonary (mechanical ventilator, folliculitis

Question 6

Intertriginous

Answer 6

scalded skin, satellite, diabetic

Question 7

Germ tube

Answer 7

C. stellatoidea, tropicalis, virulence factor

Question 8

Chlamydoconidia

Answer 8

thick-walled, terminal (C. albicans), survival media nutrients gone

Question 9

1. Torulopsis glabrata

Answer 9

only buds, vaginitis, indwelling catheter, dentures, Azole (R), weaker biofilm, (dark pink)

Question 10

2. krusei

Answer 10

mycelial border, pseudohyphae no chlamydoconidia, azole (R) (light pink/velvet)

Question 11

3. parapsilosis

Answer 11

large mycelial/giant cells, curved pseudohyphae, indwelling device

Question 12

4. tropicalis

Answer 12

abundant branches, true hyphae at 37 systemic (blue/purple)

Question 13

C. auris

Answer 13

nursing home, MALDI-TOF, invasive

Question 14

Cryptococcosis (urease+)

Answer 14

Respiratory, skin lesions, diabetes, leukemia, HIV, steroid, (butyrous/butter), pigeon poo

Question 15

Bird seed agar (L-dopamine)

Answer 15

phenoloxidase, caffeic acid, into melanin, differential

Question 16

CALAS

Answer 16

Cryptococcal antigen latex agglutination, capsular polysaccharide antigens

Question 17

Cryptococcus gattii

Answer 17

canavanine-glycine-bromthymol blue (CGB) agar, + blue

Question 18

C. albicans chrome agar

Answer 18

green (trichosporin beigeli)

Question 19

AST

Answer 19

broth based, microdilution, agar (etest, disk diffusion), FC, terol quantification, (YeastOneH plate magenta growth, blue inhibited)

Question 20

Dematiaceous

Answer 20

dark hyphae

Question 21

Biseriate (vesicle)

Answer 21

metula

Question 22

Aspergillosis

Answer 22

dichotomous (two parts) branching

Question 23

1. A. fumigatus (green)

Answer 23

Uniseriate/Collumnar (paintbrush), mycotoxicosis (supress immune)/keratomycosis

Question 24

2. A. flavus

Answer 24

rough pitted conidiophore, often biseriate/radiate, acute aflatoxicosis (liver cancer, growth failure in children)

Question 25

3. A. niger

Answer 25

biseriate/radiate