MYCOLOGY

Question 1

Trichophyton

Answer 1

Cutaneous
Spread: soil, human, animals
Signs: invade only keratinized tissues (hair, skin, nails)
Disease: ring worm

Question 2

Sporothrix

Answer 2

Subcutaneous; dimorphic
Spread: rose thorns, soil, vegetation
Signs: skin lesion, granulomatous ulcer at puncture site
Disease: sporotrichosis

Question 3

Histoplasma capsulatum

Answer 3

Systemic (means inhalation by spores); dimorphic
Spread: bird or bat droppings
Sign: pulmonary infection signs
Disease: histoplasmosis

Question 4

Blastomyces dermatidis

Answer 4

Systemic (means inhalation by spores)
Spread: spores in soil become airborne and disseminated
Signs: Rare ulcerated granuloma, mainly asymptomatic
Disease: blastomycosis

Question 5

Candida

Answer 5

Oppurtunistic; yeast like
spread: normal flora on skin over grows; risk factor being immunocomp, IV
Signs: itching; white patches
Disease: thrush, yeast infection

Question 6

Aspergillis

Answer 6

Oppurtunisitic; mold like
spread: inhalation of ubiquitous mold spores (i.e. construction sites)
Signs: mainly immunocompromised have infections such as CF pts
Disease: pneumonia

Question 7

Pneumoncystis jiroveci

Answer 7

Opportunistic; yast like
Spread: risk factors in immunocomp like HIV
Signs: pulm sxs, pneumocytis