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Mycology & Virology > SAS 3 > Flashcards

SAS 3 Flashcards

1
Q

dermatophytes grow outside the hair shaft

A

Ectothrix

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2
Q

dermatophytes grow inside the hair shaft

A

Endothrix

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3
Q

Ringworm Most commonly affect the skin on the:

Body

A

Tinea corporis

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4
Q

Ringworm Most commonly affect the skin on the:

Scalp

A

Tinea capitis

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5
Q

Ringworm Most commonly affect the skin on the:

Feet

A

Tinea pedis or athletes’s foot

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6
Q

Ringworm Most commonly affect the skin on the:

Groin

A

Tinea corporis or jock itch

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7
Q

3 MAIN GENERA of Tinea

A

Microsporum
Trichophyton
Epidermophyton

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8
Q

3 MAIN GENERA of Tinea

affects the hair and skin

A

Microsporum

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9
Q

3 MAIN GENERA of Tinea

affects the hair,skin and nails

A

Trichophyton

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10
Q

3 MAIN GENERA of Tinea

affects the skin and nails

A

Epidermophyton

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11
Q

ringworm infection of the head and scalp

A

Tinea capitis

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12
Q

ringworm infection of the inguinal area( e.g. jock itch, gym’s itch, ringworm of the groin)

A

Tinea cruris

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13
Q

ringworm infection of the body

A

Tinea corporis

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14
Q

ringworm infection of the beard or mustache (barber’s itch)

A

Tinea barbae

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15
Q

Ringworm infection of the nail ( onychomycosis)

A

Tinea unguium

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16
Q

Jock Itch

A

Tinea cruris

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17
Q

Athlete’s Foot

A

Tinea pedis

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18
Q

Infection of the axilla

A

Tinea axillaris

19
Q

Infection of the hands

A

Tinea manus

20
Q

Scalp Ringworm

A

Tinea capitis

21
Q

Barber’s Itch

A

Tinea barbae

22
Q

Ringworm of the body

A

Tinea corporis

23
Q

Onchomycosis (Nail)

A

Tinea unguium

24
Q

A white or yellow opaque streak appears at one side of the nail.

A

Lateral onychomycosis

25
Q

Scaling occurs under the nail.

A

Subungual hyperkeratosis

26
Q

The end of the nail lifts up. The free edge often crumbles.

A

Distal onycholysis

27
Q

Flaky white patches and pits appear on the top of the nail plate.

A

Superficial white onychomycosis

28
Q

Yellow spots appear in the half-moon (lunula)

A

Proximal onychomycosis

29
Q

Microsporum has yellow green fluorescence except

A

M. gypseum

30
Q

Causes T. capitis among lower age group

MICROSCOPIC ID:
- Sterile hyphae, terminal chlamydospore, favic chandelier and
pectinate bodies
- Macroconidia: Rare, if present “spindle-shaped”
- Microconidia: Rare, “leaf-like” or absent
- Colony: Downy white to salmon pink

A

Microsporum audonii

31
Q

Common caused of ringworm in dogs and cats

A

Microsporum canis

32
Q

Characteristic colony: Mold and cottony light brown “cinnamon powdery color”

A

Microsporum gypseum

33
Q

Charateristic; thik septa, “bamboo” hyphae

A

Microsporum ferrugineum

34
Q

Worldwide cause of athletes foot

A

Tricophyton mentagrophytes

35
Q

Fastest growing drmatophytes

A

Tricpohyton rubrum

36
Q

Differential medium which aids in the
identification of T. rubrum nd T. mentagrophytes on the basis of pigment production

A

Dextrose-Cornmeal Agar

37
Q

Tinea imbracata

A

Tricophyton concentricum

38
Q

Characteristic of skin lesion is CONCENTRIC/RING-SHAPED in appearance

  • Balloon shaped chlamydoconidia
A

Tricophyton concentricum

39
Q

Caused of adult ringworm of the scalp( Alopecia)

A

Tricophyton tonsurans

40
Q

Macroconidia: rare; but form “rat-tail” type, 3-5 cell, thin walled

Microconidia: rare; large and “tear-drop” when seen

A

Tricophyton verrucosum

41
Q

Slowest growing dermatophyte

A

Tricophyton shoenleinii

42
Q

Hyphae seen as “favic-chandeliers”

A

Tricophyton shoenleinii

43
Q

Tinea favosa

A

Tricophyton shoenleinii

44
Q

Colony: Center of the colony tends to be folded and is khaki green, periphery is yellow

A

Epidermophyton floccosum

Mycology & Virology (10 decks)

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