Myco

Question 1

Compared to bacteria spores in fungi are used for?

Answer 1

Reproduction

Bacteria- survival

Question 2

Compared to bacteria, fungi’s cell wall contains?

Answer 2

Chitin

Bacteria- peptidoglycan

Question 3

Fungi are cultured in what medium?

Answer 3

Saburaud’s agar

Question 4

Diagnosis of fungi can be done using this preparation

Answer 4

KOH preparation

Question 5

A cutaneous mycoses presenting w/ inflamed circular border containing papules and vesicles surrounding a clear area of relatively normal skin; it has green fluorescence on wood’s lamp

Answer 5

Dermatophtoses( ring worm)

Question 6

Spaghetti and meatballs appearance on 10% KOH

Answer 6

Malassezia furfur

Question 7

Occurs most often in gardeners especially those who prune roses; transmitted thru thorn prick

Answer 7

Sporothrix schenckii

Tx: potassium iodide or itraconazole

Question 8

Transmitted thru inhalation of arthrospore causing valley fever; eryhtema nodosum (desert bump)

Answer 8

Coccidioides immitis

Question 9

Grows in soil contaminated w/ bird droppings(starlings) or bat guano

Answer 9

Histoplasma capsulatum

Question 10

Its pathogenesis is that Inhaled microconidia develops into budding yeast inside macrophages

Answer 10

Histoplasmosis capsulatum

Question 11

Fungi that Closely mimics tuberculosis

Answer 11

Histoplasma capsulatum

Paragonymus- also mimicks ptb

Question 12

Round yeast with broad based bud

Answer 12

Blastomyces dermatitidis

Question 13

Most common cause of fungal pneumonia

Answer 13

Blastomyces dermatitidis

Question 14

Thick yeast w/ multiple buds in wheel configuration (mariner’s or sailor’s wheel)

Answer 14

Paracoccidioides brasiliensis

Question 15

Only affect males (estrogen inhibits fungus); “man hater fungus”

Answer 15

Paracoccidioides brasiliensis

Question 16

Lutz splendore de almeida disease

Answer 16

Paracoccidioides brasiliensis

Question 17

Causes pseudomembranous esophagitis in immunocompromised states

Answer 17

Candida albicans

Question 18

Curd- like discharge in vulvovaginitis

Answer 18

Candida albicans

Question 19

Oval yeast w/ wide polysaccharide capsule seen in india ink preparation or nigrosin stain

Answer 19

Cryptococcus neoformans

Question 20

Grows abundantly in soil w/ bird (especially pigeon) droppings

Answer 20

Cryptococcus neoformans

Question 21

Septate hyphae that form v shaped dichotomous branches

Answer 21

Aspergillus fumigatus

Question 22

Fungus ball in lung cavities

Answer 22

Aspergillus fumigatus

Question 23

Rhino orbital cerebral infection with eschar formation in pxs with DKA, burns or leukemia

Answer 23

Mucormycosis ( rhizopus oryzae and mucor spp)

Question 24

Most common AIDS defining illness

Answer 24

Pneumocystis jiroveci

Question 25

What do you call the major membrane sterol of fungi?

Answer 25

Ergosterol