derma-fungal infection Flashcards

0
Q

Superficial infection caused by dermatophytes

A

Dermatophytosis

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1
Q

Mimics Lentiginous melanoma

A

T. Nigra

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2
Q

Fungal infection caused by any fungi

A

Dermatomycosis

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3
Q

Have the ability to form molecular attachments to keratin and use it as a source of nutrient which allows them to colonize keratinizing tissue

A

Dermatophytes

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4
Q

T or F: geophilic infection is non inflammatory

A

False. Infection is inflammatory

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5
Q

Most common geophilic dermatophyte

A

Microsporum gypseum

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6
Q

T or F: zoophilic species are found in animals, but also in human

A

True

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7
Q

Favored site of zoophilic infection

A

Scalp, beard, face, arms

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8
Q

Inflammatory dermatophytes are most commonly produced by geophilic/zoophilic/anthropophilic

A

Zoophilic sp

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9
Q

Geophilic and zoophilic are sporadic, whereas anthropophilic is

A

Epidemic

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10
Q

Ectothrix with yellow green fluorescence

A

M. Audouinii
M. Canis
M. Ferrugineum

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11
Q

Endothrix with dull gray-green fluorescence

A

T. Schoenleinii

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12
Q

Most common cause of t. Capitis in US

A

T. Tonsurans (no fluorescence)

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13
Q

T or F: only the severity Of dermatophytosis is increased with immunodeficiency, not the prevalence

A

True

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14
Q

Dermatophyte infxns are more common on m/f

A

Male

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15
Q

T. Tonsurans is more common in m/f

A

Female

16
Q

Ecto/endothrix: small or large anthroconidia forming a sheath around the hair shaft

A

Ectothrix

17
Q

Ecto/endothrix: anthroconidia within the hair shaft

A

Endothrix

18
Q

3 steps of dermatophyte infection

A
  1. Adherence to keratinocytes
  2. Penetration thru and between cells
  3. Development of host response
19
Q

Etiology of t. Capitis

A

M. Canis

20
Q

Etiology of t. Favosa

A

T. schoenleinii

21
Q

Etiology of t. Barbae

A

T. Mentagrophytes

T. Verrucosum

22
Q

Etiology of t.corporis

A

T. Rubrum

23
Q

Etiology of t. Umbracata

A

T. Concentricum

24
Q

Etiology of t. Cruris

A

T. Rubrum

E. Floccosum

25
Q

Etiology of t. Pedis and manus

A

T. Rubrum

26
Q

Infectious element of dermatophytes

A

Arthroconidia

27
Q

FA produced by sebaceous g are fungi static/fungicidal?

A

Fungistatic. Accts to decrease in puberty

28
Q

Inflammatory eczematous allergic skin reaction at sites distant from the primary fungal infection

A

Demrmatphytid reactions