Fungal Infections Flashcards

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1
Q

M/C/C of Tinea Pedis (Athlete’s Foot)?

A

Trichophytan Rubrum

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2
Q

What skin findings do you see with Tinea pedis?

A
  • Erythema
  • Scaling
  • White, mushy, soft, cracked skin between toes
  • Pruritis
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3
Q

Tinea Manuum is often _______ and often associated with _______?

A
  • Unilateral (M/C dominant hand)
  • Tinea pedis
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4
Q

With Tinea Manuum look for?

A

Diffuse scaling on palmer aspect + advancing border

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5
Q

*What pts are more prone to fungal infections?

A

DIABETICS

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6
Q

RF for fungal infections?

A
  • Warm/humid weather
  • Obesity
  • Tight clothing
  • Excessive sweating
  • Chronic topical. steroid use
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7
Q

Tinea Cruris

A

“Jock itch” (usu. itchy)

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8
Q

T/F: You should use cortisone cream for fungal infections

A

False!!! It’s fertilizer for fungus BADDD

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9
Q

With Tinea Faciei you get less scaling and more?

A

Inflammation (photosensitizing, gets red with sun exposure)

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10
Q

If Tinea is mistreated with a topical steroid for a while what can develop?

A

Tinea Incognito (deep red/violaceous follicular papules/pustules)

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11
Q

How can you dx a fungal infection?

A
  • Biopsy
  • KOH Test (look for hyphae)
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12
Q

What’s the treatment for ALL Tinea infections besides T. Incognito, T. Capitus, & Onychomycosis)

A

TOPICAL Antifungals!
- Econazole
- Ketoconazole

Oral antifungals may be used in extensive/resistant cases or in areas where it makes sense that an oral med is needed (i.e hairy areas)

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13
Q

Fungal infection of the nails

A

Onychomycosis

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14
Q

What do you see with Tinea Capitis?
Who is it m/c in?

A
  • Scaling, broken hairs, painful/boggy nodules on scalp
  • Possible scarring alopecia
  • M/C in toddlers, school-age kids, African Americans
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15
Q

What is Tinea Versicolor?

A

Chronic, asx scaling dermatosis associated with the superficial overgrowth of Malassezia furfur (same fungus that causes seborrheic dermatitis)

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16
Q

What skin findings do you see with Tinea Versicolor?
Where does it m/c occur?

A
  • Well-demarcated, scaling patches with varying pigmentation
  • M/C on trunk
17
Q

What do you see on KOH for Tinea Versicolor?

A

“Spaghetti and Meatballs”

18
Q

What is Pityrosporum Folliculitis?

A

Pruritic, monomorphic follicular papule/pustule commonly found on the trunk, NO comedones

19
Q

RF for Tinea Unguium “Onychomycosis”?

A
  • DM
  • Immunosuppression
  • Occlusive footwear
20
Q

Thick yellow discoloration of the nail, m/c big toe

A

Onychomycosis

21
Q

How do you treat Onychomycosis?

A

Since topical antifungals aren’t super effective give oral antifungals like Terbinafine or Fluconazole PO

22
Q

What skin findings do you see with a Candida (m/c Candida albicans) infection?
Where is it m/c found?

A
  • Beefy red erythema
  • Red pinpoint papules/pustules which become umbilicated –> “Satellite lesions”
  • Erosions, ulcerations, fissures
  • M/C in warm moist skin folds (ex. diaper dermatitis)
23
Q

How id Candida treated?

A
  • Systemic antifungals like Flucanazole (Diflucan)
  • Topical antifungals (powder/drying agent)
24
Q

What is Angular Cheilitis “Perleche”?
Who is m/c affected?
Possible causes?

A
  • Inflammation of the angles of the mouth which can lead to fissuring, bacterial, or yeast infection
  • M/C in elderly
  • Aging, poor fitting dentures, chronic lip licking