Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
40 Cards in this Set
- Front
- Back
|
Superficial Mycoses: characteristics
|
fungal infx of keratin-containing outer skin, nails, hair
little to no immune response may be asymptomatic |
|
|
Tinea (Pityriasis) Versicolor:
Etiological Agent |
Malassezia fufur
|
|
|
Tinea (Pityriasis) Versicolor:
Transmission/VF |
Trans. By infectious keratinous material
|
|
|
Tinea (Pityriasis) Versicolor:
Primary Diagnosis |
Sm, irregular, raised macules;
hypo- or hyperpig. (interfere w/ melanin) |
|
|
Tinea (Pityriasis) Versicolor:
Lab ID |
Micro- skin scrapings & yellow fluorescence under UV.
|
|
|
Tinea (Pityriasis) Versicolor:
Outcome/ Treatment |
Topical chemotherapy
Oral if widespread -Lipid supp. for in vitro growth. |
|
|
Tinea (Pityriasis) Versicolor:
Misc. |
Yeast cells branched, short pseudohyphae; end to end orientation
|
|
|
Tinea nigra:
Etiological Agent |
Hortaea werneckii
|
|
|
Tinea nigra:
Transmission/VF |
Traumatic inoculation
|
|
|
Tinea nigra:
Primary Diagnosis |
Dk
solitary macules w/ irreg borders on palms & soles |
|
|
Tinea nigra:
Lab ID |
Micro- skin scrapings, fungal growth on media w/ antibio
|
|
|
Tinea nigra:
Outcome/ Treatment |
Topical Chemotherapy
|
|
|
Tinea nigra:
Misc. |
Dematiaceous, highly branched, septate hyphae w/ arthoconidia & budding
|
|
|
White piedra: Superficial
E. Agent |
Trichosporon
|
|
|
White piedra: Superficial
Transmission/VF |
Poor hygiene in sub- & tropic areas
|
|
|
White piedra: Superficial
Primary Diagnosis |
Pasty growth around groin & axillae hairs
|
|
|
White piedra: Superficial
Lab ID |
Micro- colonial growth from hair on cyclohexamide- lacking media
|
|
|
White piedra: Superficial
Outcome/ Treatment |
Topical chemotherapy, shaving & good hygiene
|
|
|
White piedra: Superficial
Misc. |
Arthroconidia from hyphea w/ budding yeast cells
|
|
|
Black piedra: Superficial
E. Agent |
Piedraia hortae
|
|
|
Black piedra: Superficial
Transmission/VF |
Poor hygiene in sub- & tropic areas
|
|
|
Black piedra: Superficial
Primary Diagnosis |
Sm, dark nodules on hair shaft
|
|
|
Black piedra: Superficial
Lab ID |
Micro- exam. Nodules
|
|
|
Black piedra: Superficial
Outcome/ Treatment |
Hair cut followed by proper washing
|
|
|
Black piedra: Superficial
Misc. |
Dematiaceous hyphae (brown or black)
produce ascospores in hard mycelia masses- surround hair shaft |
|
|
Dermato-phytoses: Cutaneous
Microsporum spp. E. Agent |
Microsporum spp.
|
|
|
Dermato-phytoses: Cutaneous
Microsporum spp. Transmission/VF |
Infect outermost layer of the skin
b↓ keratin layers of hair skin & nails |
|
|
Dermato-phytoses: Cutaneous
Microsporum spp. Primary Diagnosis |
“Ringworm” pattern of inflammation which dec toward the center;
onychomycosis |
|
|
Dermato-phytoses: Cutaneous
Microsporum spp. Lab ID |
Micro- bx infected tx, in vitro cultures; Fluoresce under UV light
|
|
|
Dermato-phytoses: Cutaneous
Microsporum spp. Misc. |
Classified based on anatomical involvement
Produces num. rough, thick-walled macroconidia & few microconidia |
|
|
Dermato-phytoses: Cutaneous
Epidermophyton spp. (floccosum) E. Agent |
Epidermophyton spp. (floccosum)
|
|
|
Dermato-phytoses: Cutaneous
Epidermophyton spp. (floccosum) Transmission/VF |
Infect outermost layer of the skin
b↓ keratin layers of hair skin & nails Ecothrix, endothrix, & favix. |
|
|
Dermato-phytoses: Cutaneous
Epidermophyton spp. (floccosum) Misc. |
Clusters of smooth-walled macroconidia w/ NO microconidia.
|
|
|
Dermato-phytoses: Cutaneous
Trichophyton spp. E. Agent |
Trichophyton spp.
|
|
|
Dermato-phytoses: Cutaneous
Trichophyton spp. Transmission/VF |
Infect outermost layer of the skin
b↓ keratin layers of hair skin & nails Ecothrix, endothrix, & favix. |
|
|
Dermato-phytoses: Cutaneous
Trichophyton spp. Misc. |
Produces num. pleomorphic microconidia & few thin-walled macroconidia
|
|
|
Dermatophytoses: Cutaneous
Treatment |
Topical Chemo for localized skin infx's
Oral Chemo for infx's of hair and nails |
|
|
Dermato-mycoses: Cutaneous
E. Agent |
Candida spp.
Scopulariopsis brevicaulis Scytalidium spp. |
|
|
Dermato-mycoses: Cutaneous
Primary Diagnosis |
Onychomycosis (fungal nail infx)
|
|
|
Dermato-mycoses: Cutaneous
Misc. |
Caused by nondermatophytic fungi
|
