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UCD Dermatology - Term 1 > Fungal/Viral > Flashcards

Fungal/Viral Flashcards

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Dermatology Board Prep flashcards
1
Q

Centrifugal spread with central clearing. Annular lesion. May have pustules in border.

A

Tinea corporis

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2
Q

Male with upper thigh involvement, pruritus and erythema that developed into erythematous plaque with scale and an advancing edge.

A

Tinea cruris

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3
Q

Eczematous eruption between the 3rd and 4th toe (or 4th and 5th toe).

A

Tinea pedis - interdigital type

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4
Q

What are the 4 types of tinea pedis?

A
  1. Ulcerative
  2. Interdigital
  3. Moccasin
  4. Inflammatory (vesicular)
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5
Q
A

Lateral onychomycosis

  • A white/yellow opaque streak at one side of the nail
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6
Q
A

Subungual hyperkeratosis

  • Scaling occurs under the nail
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7
Q
A

Distal onycholysis

  • End of nail lifts, free edge often crumbles
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8
Q
A

Superficial white onychomycosis

  • Flaky white patches and pits on top of nail plate
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9
Q
A

Proximal Onychomycosis

  • Yellow spots appear in the half-moon (lunula)
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10
Q
A

Onychoma or dermatophytoma

  • thick localized area of infection in the nail plate
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11
Q
A

FAVUS

Yellow crusts and matted hair - tinea capitis

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12
Q
A

MAJOCCHI’S GRANULOMA

  • Irregular red, scaly plaque, follicular papules, pustules and nodules
  • Fungal infection often elsewhere (e.g. tinea pedis)
  • 2 forms
    • Perifollicular papular (healthy individuals)
      • localized dermal infection
    • Deep subcutaneous plaque or nodular (immunosuppressed)
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13
Q

What is the most likely etiology of a mould infection?

A

Scopulariopsis brevicaulis

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14
Q

List 4 types of investigations that can be used to diagnose cutaneous fungal infections.

A
  1. Clinical
  2. Wood’s lamp - yellow-green fluorescence if microsporum canis
  3. Dermatoscopy
  4. Microscopy and culture of skin scrapings
  5. Histopathology of skin or nail biopsy using PAS (periodic acid-Schiff) stain
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15
Q

Which agents can be used for superficial dermatophyte infections?

A
  1. Terbinafine - PO/topical
  2. Itraconazole - PO/topical
  3. Griseofulvin - PO
  4. Ketaconazole - topical
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16
Q

Which agents can be used for superficial candida infections?

A
  • Oral candidiasis
    • Nystatin mouthwash
    • Miconazole gel
    • Chlorhexidine gluconate
  • Fluconazole
17
Q

Which agents can be used for superficial malassezia infections?

A

Ketaconazole

UCD Dermatology - Term 1 (3 decks)

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