fungal and parasitic skin infections
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Fungal and Parasitic Skin Infections
Assoc.Prof.Dr.Yeşim Gürol
Tinea pedis (Athlete’s foot)
Disease Etiological Agent Symptoms Identification of organism
Pityriasisversicolor
Malassezia furfur
hypopigmented macules
"spaghetti and meatballs" appearance of organism in skin scrapings
Tinea nigra
Exophiala werneckii black macules black, 2-celled oval yeast in skin
scrapings
Black piedra
Piedraia hortai
black nodule on hair shaft
black nodule on hair shaft composed of spore sacs and spores
White piedra
Trichosporum beigelii
creme-colored nodules on hair shaft
white nodule on hair shaft composed of mycelia that
fragment into arthrospores
tinea capitis tinea barbae tinea corporis tinea cruris tinea unguium tinea pedisThe three most common dermatophytes areMicrosporum, Trichophyton, and Epidermophyton. Theyproduce characteristic asexual reproductive spores called macroconidia and microconidia
Sporothrix schenkii
body louse, Pediculus humanus,head louse, P. humanus capitisThe pubic or crab louse, Phthirus pubis
Scabies
Scabies (right) is very easy to misdiagnose because early subtle cases may look like small pimples (left) or mosquito bites (center).
Demodex folliculorum
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