1.5.2 Mycoses (Cutaneous mycoses) Flashcards
Cutaneous mycoses targets______________; tinea/ringworm infections
keratinized tissues
All of the dermatophytes are Anthrophilic except
a. Epidermophyton flocossum
b. Microsporum audouinii
c. Trichophyton concentricum
d. Trichophyton rubrum
e. Trychophyton equinum
f. None of the Above
e
All of the dermatophytes are zoophilic except
a. Micrsporon canis
b. Trichophyton mentagrophytes
c. Trichophyton verucosum
d. Trichophyton schoeleinii
e. Trychophyton equinum
f. None of the Above
d
All of the dermatophytes are Anthrophilic except
a. Epidermophyton flocossum
b. Microsporum audouinii
c. Trichophyton concentricum
d. Trichophyton violaceum
e. Trychophyton Tonsurans
f. None of the Above
f
The only geophilic dermatophytes?
Microsporum gypseum
What part is Tinea capitis
Scalp
What part is Tinea Favosa
Scalp but more severe
What part is Tinea Barbae
Facial hair
What part is Tinea corporis
Body
What part is Tinea cruris
inguinal
What part is Tinea pedis
foot
What part is Tinea unginum
nails
What part is Tinea mannum
hand
What is the etiologic agent for Tinea imbricate?
Trichophyton concentrium
Microsporum infects what part?
Skin and hair
Epidermophyton infects what part?
Skin and nails
Trichophyton infects what part?
Skin, Hair, and Nails
Macroconidia: Smooth walled; Club shape
Microconidia: None
a. Microsporum
b. Epidermophyton
c. Trichophyton
b
Macroconidia: Smooth walled; Club shape; Thin walled
Microconidia: Numerous; spherical; tear shaped
a. Microsporum
b. Epidermophyton
c. Trichophyton
c
Macroconidia: Large; spindle shaped, thick walled, multiseptate
Microconidia: Few or absent
a. Microsporum
b. Epidermophyton
c. Trichophyton
a
The ectothrix infection for Microsporum has a ________ pattern
Mosaic
This type of Microsporum has Large, spindle shape rough (Echinulate) macroconidia with terminal ends are curved (Beaked Apex)
a. M. canis
b. M. gypseum
c. M. audouinii
a
Rare, bizarre distorted macroconidia, has a presence of chlamydoconidia
a. M. canis
b. M. gypseum
c. M. audouinii
c
3-9 celled broadily spindle shaped rough walled macroconidia with rounded terminal ends
a. M. canis
b. M. gypseum
c. M. audouinii
b
Colonies: Tan/Buff; cinnamon
a. M. canis
b. M. gypseum
c. M. audouinii
b
Colonies: Cottony white, salmon
a. M. canis
b. M. gypseum
c. M. audouinii
c
Colonies: Bright yellow
a. M. canis
b. M. gypseum
c. M. audouinii
a
Which among microsporum is associated with Tinea capitis
a. M. canis
b. M. gypseum
c. M. audouinii
a and c
All of the Microsporum are (+) in Wood’s Lamp except?
a. M. canis
b. M. gypseum
c. M. audouinii
b
All of the Microsporum are grown in Rice agar except?
a. M. canis
b. M. gypseum
c. M. audouinii
c
Shape of M. audouinii hyphae?
Pectinate hyphae
Epidermophyton is (-) in Wood’s lamp
T or F
F
Macroconidia: Snow paddle, club shaped; smooth walled appearance
E. flocossum
Colonies of Epidermophyton:
a. Khaki Green, velvety
b. Khaki White, Matte
c. Khaki Grey, Chalky
d. Khaki Creamy, Velvety
a
Which among the three dermatophytes associated with jock itch (Tinea cruris), athletes foot (Tinea pedis), Tinea unginum, Tinea manuum
Epidermophyton flocossum
Which among the three dermatophytes is ectothrix infection
Microsporum
Which among the three dermatophytes is endothrix infection
Trichophyton
Endothix: Favo variety
a. T. rubrum
b. T. schoenleinii
c. T. mentogrophytes
d. T. tonsurans
e. T. verrucosum
b
Which among the three dermatophytes is Wood’s lamp negative
Trichophyton
Macroconidia: Pencil shaped
Microconidia: Tear shaped “Birds on a fence” (En thryse)
a. T. rubrum
b. T. schoenleinii
c. T. mentogrophytes
d. T. tonsurans
e. T. verrucosum
a
Macroconidia: Few, cigar shaped; smooth walled
Microconidia: Spherical; grapelike clusters (En grappe)
a. T. rubrum
b. T. schoenleinii
c. T. mentogrophytes
d. T. tonsurans
e. T. verrucosum
c
Which among the Trichophyton produces red pigment in CORNMEAL AGAR with 1% Glucose?
a. T. rubrum
b. T. schoenleinii
c. T. mentogrophytes
d. T. tonsurans
e. T. verrucosum
a
Which among the Trichophyton produces SCANTY red pigment in CORNMEAL AGAR with 1% Glucose?
a. T. rubrum
b. T. schoenleinii
c. T. mentogrophytes
d. T. tonsurans
e. T. verrucosum
c
Positive in Both UREASE and HAIR BAITING TEST (V shaped Perforation)
a. T. rubrum
b. T. schoenleinii
c. T. mentogrophytes
d. T. tonsurans
e. T. verrucosum
c
Associated disease Tinea cruris, Tinea Corporis, Tinea capitis
a. T. rubrum
b. T. schoenleinii
c. T. mentogrophytes
d. T. tonsurans
e. T. verrucosum
a
Associated disease Tinea unginum, Tinea barbae, Tinea pedis
a. T. rubrum
b. T. schoenleinii
c. T. mentogrophytes
d. T. tonsurans
e. T. verrucosum
c
Macroconidia: Rare
“Balloon formation”
2nd most common cause of epidemic tinea capitis
a. T. rubrum
b. T. schoenleinii
c. T. mentogrophytes
d. T. tonsurans
e. T. verrucosum
d
Conidia: ABSENT
Causes: Tinea favosa
Favic chandelier
a. T. rubrum
b. T. schoenleinii
c. T. mentogrophytes
d. T. tonsurans
e. T. verrucosum
b
Macroconidia: Rat tail
Microconidia: ABSENT
Chlamydoconidia in chains
Swollen hyphae with cytoplasmic granules
Can cause Tinea Favosa
a. T. rubrum
b. T. schoenleinii
c. T. mentogrophytes
d. T. tonsurans
e. T. verrucosum
e
