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;
77 Cards in this Set
- Front
- Back
|
What are the 2 types of superficial mycoses?
|
1. Skin infections
2. Hair infections (what about nail? oh well) |
|
|
What 2 organisms cause skin infections?
|
Malassezia furfur
Exophiala werneckii |
|
|
What does M furfur cause?
What is its morphology like? |
-Pityriasis versicolor
-Spaghetti/meatballs |
|
|
What does Exophiala werneckii cause?
|
Tinea nigra
|
|
|
What is the name of hair infections with mold?
|
Black/white piedra
|
|
|
What causes black piedra?
|
Piedraia hortai
|
|
|
What causes white piedra?
|
Trichosporon beigelii
Trichosporon cutaneum |
|
|
What is trichosporon though?
|
A YEAST
|
|
|
What is tinea capitis?
|
Ringworm of the hair/face
|
|
|
What is Tinea barbae?
|
beard
|
|
|
What is Tinea corporis?
|
body
|
|
|
What is Tinea cruris?
|
jock itch
|
|
|
What is Tinea unguinum?
|
onychomychosis - nail inf
|
|
|
What is Tinea pedis?
|
foot
|
|
|
What is Favus, and what causes it?
|
A type of tinea capitis, corporis, OR unguinum
-Caused by Trichophyton schoenleinii |
|
|
What characteristic is used to identify Favus?
|
Favic chandeliers - anter like hyphae.
|
|
|
Infection types caused by:
-Microsporum -Trichophyton -Epidermophyton |
Micro = hair/skin
Tricho = hair/skin/nails Epiderm = skin/nails |
|
|
What feature identifies:
-Microsporum -Trichophyton -Epidermophyton |
Micro = tapered macroconidia
Tricho = microconidia Epiderm = club macroconidia |
|
|
what are club-shaped conidia called again?
|
CLAVATE
|
|
|
Name the 3 microsporum spec.
|
1. Microsporum audounii
2. Microsporum canis 3. Microsporum gypseum |
|
|
Name the 4 Trichophyton spec.
|
1. Trichophytn mentagrophytes
2. Trichophyton rubrum 3. Trichophyton tonsurans 4. Trichophyton schoenleinii |
|
|
What test is used to identify T. mentagrophytes when both it and rubrum are red?
|
Hair penetration test
|
|
|
Which mold can penetrate infant hair autoclaved and incubated for 2-3 wks?
|
Trichophyton MENTAGROPHYTES; differentiate from T. rubrum.
|
|
|
What instrument is used to see tinea nigra/versicolor?
|
Wood's lamp
|
|
|
What is necessary to get Malessezia furfur to grow?
|
Overlaying with mineral oil.
|
|
|
What organism causes tinea capitis?
|
Trichophyton tonsurans; endemic in latin america.
|
|
|
Other than hair penetration what seperates T. rubrum from mentagrophytes?
|
Urease test;
Mentagrophytes = pos Rubrum = neg |
|
|
How do you differentiate the microsporum species?
|
By their macroconidia;
-audouinii has FEW -canis has pointy ends, echinulate, and thick walls -gypseum has rounded ends, fewer septations, thin walls |
|
|
What 4 things distinguish microsporum audouinii?
|
1-lack of macroconidia
2-intercalcary 3-terminal, pointed chlamydoconidia 4-pectinate hyphae |
|
|
How are microsporum species distinguished macroscopically
|
COLOR
-audouinii = off white front, ORANGE BACKSIDE -canis = white front, yellow backside -gypseum = buff to tan |
|
|
make sure to finish this.
|
ok
|
|
|
MALASSEZIA FURFUR
|
WHAT IS IT?
|
|
|
malessezia furfur
|
WHAT IS IT?
|
|
|
tinea nigra
|
WHAT IS IT?
|
|
|
tinea nigra
|
WHAT IS IT?
|
|
|
tinea nigra, caused by exophiala werneckii
|
WHAT IS IT?
|
|
|
tinea nigra, caused by exophiala werneckii
|
WHAT IS IT?
|
|
|
tinea capitis
|
WHAT IS IT?
|
|
|
tinea capitis
|
WHAT IS IT?
|
|
|
tinea capitis
|
WHAT IS IT?
|
|
|
tinea barbae
|
WHAT IS IT?
|
|
|
tinea corporis
|
WHAT IS IT?
|
|
|
tinea unguinum (onychomycosis)
|
WHAT IS IT?
|
|
|
tinea pedis
|
WHAT IS IT?
|
|
|
epidermophyton floccosum
|
WHAT IS IT?
|
|
|
epidermophyton floccosum
|
WHAT IS IT?
|
|
|
epidermophyton floccosum
|
WHAT IS IT?
|
|
|
Microsporum auduinii
-off white front -orange reverse |
WHAT IS IT?
|
|
|
Microsporum audouinii
-Intercalcary -Terminal chlamydoconidia |
WHAT IS IT?
|
|
|
Microsporum audouinii
-Intercalcary -Terminal chlamydoconidia |
WHAT IS IT?
|
|
|
Microsporum canis
-White front -Yellow reverse |
WHAT IS IT?
|
|
|
Microsporum canis
-White front -Yellow reverse |
WHAT IS IT?
|
|
|
Microsporum canis
-Pointed, echinulate macrocon -Thick walls, 6+ septations |
WHAT IS IT?
|
|
|
microsporum canis
|
WHAT IS IT?
|
|
|
microsporum gypseum
-buff to tan |
WHAT IS IT?
|
|
|
microsporum gypseum
-buff to tan |
WHAT IS IT?
|
|
|
Microsporum gypseum
|
WHAT IS IT?
|
|
|
microsporum gypseum
|
WHAT IS IT?
|
|
|
microsporum gypseum
|
WHAT IS IT?
|
|
|
Trichophyton mentagrophytes
-downy form |
WHAT IS IT?
|
|
|
Trichophyton mentagrophytes
-Downy form with -BEDSPRING HYPHAE -tearshaped microconidia |
WHAT IS IT?
|
|
|
Trichophyton mentagrophytes
-Granular form -pencil macroconidia -Grapelike microconidia |
WHAT IS IT?
|
|
|
Trychophyton mentagrophytes
-granular form -grape like microconidia |
WHAT IS IT?
|
|
|
Trichophyton RUBRUM
rubrum = red reverse fron = white |
WHAT IS IT?
|
|
|
trichophyton rubrum
|
WHAT IS IT?
|
|
|
trichophyton rubrum
|
WHAT IS IT?
|
|
|
trichophyton rubrum
|
WHAT IS IT?
|
|
|
Trichophyton rubrum - numerous sessile tear-shaped microconidia
|
WHAT IS IT?
|
|
|
infection of trichophyton tonsurans - most common cause of tinea capitis
|
WHAT IS IT?
|
|
|
trichophyton tonsurans
-very variable microconidia |
WHAT IS IT?
|
|
|
trichophyton tonsurans
-so variable! |
WHAT IS IT?
|
|
|
trichophyton tonsurans
sooo very variable |
WHAT IS IT?
|
|
|
favus, caused by trichophyton schoenlenii - favic chandeliers
|
WHAT IS IT?
|
|
|
Trichophyton schoenleinii
|
WHAT IS IT?
|
|
|
trichophyton schoenleinii
|
WHAT IS IT?
|
|
|
trichophyton shoenleinii
-favic chandeliers |
WHAT IS IT?
|
|
|
trichophyton shoenleinii
-favic chandeliers |
WHAT IS IT?
|
