Site Of Infections Flashcards
What part of the cornified layer is infected
Stratum corneum
Site of infection where cornified layer of epidermis is infected
Superficial mycoses
Causative agent of tinea versicolor
Malassezia furfur
Causes of the causative agent in superficial mycoses
Tinea versicolar
Or
Pityriasis versicolor
Common endogenous skin colonizers
Malassezia furfur
Growth requirement for malassezia furfur
Lipids
Lab diagnosis in malassezia furfur
Spaghetti and meatball appearance
Test for
Malassezia furufur
Direct microscopy, use of koh 10-20%
Causative agent of black piedra
Piedraia hortae
Black/dark brown gritty nodules that are attached to shaft of hair
Black piedra
Nodules of black piedra contains
Ascospores
Lab diagnosis for piedraia hortae
Hair shaft with 10-20% koh
Causative ahent of white piedra
Trichosporon beigelii
Common human pathogen which trichosporon spp contain
Arthroconidia
Trichosporon spp
Beigelii Ovoides Asteroides Cutaneum Inkin
Causative agent of tinea nigra
Hortea werneckii
Black non scaling macules in palms and soles of the feet
Tinea nigra
Lab diagnosis for tinea nigra which contains
Anneloconidia
Site of infection which considers that they are keratinophilic or dermatophytes
Cutaneous mycoses
Cutaneous mycoses
Trichophyton
Microsporum
Epidermophyton
Cutaneois mycoses produces
Macro/microconodia
Dermatophyte classifications
Geophilic
Zoophilic
Anthropophilic
Example of geophilic dermatophyte
Microsporum gypseum
Example of zoophilic dermatophyte
Microsporum canis
Example of anthropophilic dermatophyte
Trichophyton rubrum
Also called athlete’s foot
Tinea pedis
Site affected for tinea capitis
Head
Site affected for tinea favosa
Head (distinctive pathology)
Site affected for tinea barbae
Beard
Site affected for tinea corporis
Body (glabrous skin)
Site affected for tinea manuum
Hand
Site affected for tinea unguium
Nails
Site affected for tinea cruris
Groin
Site affected for tinea pedis
Feet
Site affected for tinea imbricata
Body (distictive lesion)
Tinea favosa dermatophyte
Trichophyton schoenleinii
What ring worm causes the gray patch ringworm
Tinea capitis
Best to collect in gray patch ringworm
Side
Dermatophytes for gray patch ringworm
Microsporum audouinii
Microsporum ferrugineum
Also causes black dot ringworm
Tinea capitis
Dermatophytes for black dot ringworm
Trichophyton tonsurans
Trichophyton violaceum
Ectothrix
Gray patch ringworm
Endothrix
Black dot ringworm
Jock itch
Tinea cruris
Infection of nails
Onchomycosis
Dermatophyte for tinea imbricata
Trichophyton concentricum
Agents of cutaneous mycoses
Microsporum canis
Microsporum gypseum
Trichophyton mentagrophytes
Trichophyton rubrum
Spindle shaped macroconidia
M canis
Fusiform
Shaped agent
Microsporum gypseum
Tear shaped microconidia
Cigar shaped
Trichophyton mentagrophytes
Clavate or peg shaped
Trichophyton rubrum