skin mycotic infections Flashcards
Diagnose and treat superficial fungal skin infections. Differentiate black and white piedra. Identify ringworm infections. Diagnose and treat subcutaneous fungal skin infections.
discrete hyper-pigmented or hypopimented macular lesions on trunk, or arms
tinea veriscolor
KOH treated skin scrapings show “spagetti and meatballs” fungus
tinea versicolor
generally asymptomatic, but consisting of brownish macular skin lesions on palms and soles
tinea nigra
endemic areas for tinea nigra
florida, tropics
diagnosis confirmed on sabourand’s medium
tinea nigra
superfical fungal infection of the hair, consisting of black, hard nodules on the hair shaft
black piedra
softwhite pasty growths on hair shafts
white piedra
hair infection caused by yeast-like orginism
white piedra
treatment of tinea versicolor/tinea nigra
miconizole nitrate
MOA of miconizole nitrate
inhibits ergosterol
treatment of black/white piedra
shave the hair
area of skin lesion to scrape
edges (has more fungal agent)
chemical used in fungal microscopic identidification
KOH
medium used for fungal microscopic identidification
sabourand’s dextrose agar
criteria used to identify funusd
size, color, texture of colonies as well as fungal element ans spore morphology
ergosterol sythesis inhibitors
mconazole, clortrimazole, and econazole
oral drug for tiniea
griseofulvin
MOA of griseofulvin
inhibits fungal microtubular system and mitotic spindle formation
nodular and ulcerative lesions starting at site of trauma and spreadin alon lymphatics
lymphocutaneous sporortrichosis
initially white colonies chanin to dark pimentations
lymphocutaneous sporortrichosis
treatment for lymphocutaneous sporortrichosis
KOH orally, amphotericin for systemic
slow devloping warty cutanous califlower lookin lesions
chromoblastomycosis
exibits pseduoepitheliomatous hyperplasia
chromoblastomycosis
diagnosed by sclerotic/medlar bodies
chromoblastomycosis
