DERM 1 Flashcards
What diameter lesion raises suspicion for malignant melanoma?
Greater than 6 mm
What is another name for atopic dermatitis?
Eczema
What is the most common chief complaint for eczema?
Pruritis
First line tx for eczema?
- Emollient creams
- Infants: Hydrocortisone
- Adults: higher strength topicals-triamcinolone
Second line tx for eczema?
- Systemic steroids
- Occlusive dressings w/ topicals
- Immunomodulators
What derm condition is characterized by intense pruritus, erythema, maculopapular lesions on flexor surfaces, crusts, oozing and lichenification?
Atopic dermatitis-eczema
Tests for eczema?
- Not really
- IgE elevated
- Eosinophilia
Tx for contact dermatitis?
- Lotions: zinc oxide, talc, menthol, phenol
- High-potency short-term steroid: fluocinonide
- Transition to medium-strength: triamcinolone
- Hydroxyzine or diphenhydramine for itching
- ABX if secondary infection
What do satellite lesions in diaper dermatitis indicate?
Candida infection
Is it common to find diaper dermatitis in skin folds?
- No
- Usually spared or last
Tests for diaper dermatitis?
Nope
Tx for diaper dermatitis?
- If just contact dermatitis: hydrocortisone
- Candida: anti-fungals-miconazole
Is nummular eczema scaling or crusting?
Crusting
-Tinea is scaling
Tx for nummular eczema?
Same as atopic dermatitis
- Avoid too much soap, but use fatty soaps
- Lubricate skin after shower
What causes perioral dermatitis?
- Not well known
- Possibly formaldehyde in kleenex, toothpaste
Tx for perioral dermatitis?
Tetracyclines: doxycycline
- No topical steroids
- Throw away toothbrush, change toothpaste and kleenex
What skin condition is characterized by greasy, scaling lesions near scalp, eyebrows, and face?
Seborrheic dermatitis
Tx for seborrheic dermatitis?
- Selsun Blue
- Topical antifungals
- Topical corticosteroids
- Coal tar
What skin condition is characterized by scaling, edema, erosions, crusting, “woody” fibrosis and ulceration?
Stasis dermatitis
Is stasis dermatitis usually unilateral or bilateral?
Bilateral
What area of the body is usually associated with stasis dermatitis?
- Lower 1/3 of legs
- Medial
What diagnostic tool is crucial for chronic venous insufficiency?
-Duplex ultrasound
First-line tx for stasis dermatitis?
- ABX if secondary infection
- Wet dressings and cooling paste
- Topical corticosteroids
Second line tx for stasis dermatitis?
- ABX based on cultures
- Lubrication if dermatitis is quiescent
Tx for dyshydrotic eczema?
- Mild: low potency topical steroids
- Medium: high potency steroids and dressings
- Severe: systemic steroids
- Psoralens, botox if all else fails
- Emollients
- Avoid too much water
Tx for lichen simplex chronicus?
- Anti-pruritic agents: menthol, doxepin
- High potency topical steroids
- Oral antihistamines
What are dermatophyte infections?
Tinea fungi