Derm Flashcards
(16 cards)
Indications for shingles treatment with antiviral medications
- Severe disease
- Age > 50
- Immunocompromised
Intensely pruritic, chronic recurrent vesicular dermatitis involving the palms and soles is characteristic of…
Dyshidrotic eczema (aka acute palmoplantar eczema)
Tx = high potency topical steroid
Pathophys of bullous pemphigoid
Chronic autoimmune blistering disease with NEGATIVE Nikolsky sign
Bullous pemphigoid presentation
Deep, epidermal blisters that do NOT extend with lateral pressure (aka negative Nikolsky sign)
Affected skin is intensely pruritic
Can lead to extensive skin blistering and scarring if left untreated
Tx = systemic corticosteroids or immunosuppressives
Pemphigus vulgaris presentation
Younger pts (40-60 y/o)
Mucus membrane involvement and bullous lesions in the perioral region
Flaccid blisters, Nikolsky POSITIVE
Can you use oral erythromycin in early pregnancy for acne treatment?
Yes – contraindicated in late 3rd trimester d/t increased risk of pyloric stenosis development
Staging of pressure injuries
Stage 1 - nonblanchable erythema, intact skin, +/- pain
Stage 2 - partial thickness, shallow, open ulcer that is red or pink
Stage 3 - full thickness skin loss, subcutaneous fat may be visible, slough or eschar may be present
Stage 4 - full thickness tissue loss w/ exposed bone, tendon or muscle
Indications for systemic antibiotics for impetigo treatment
- Widespread/extensive involvement
- Patients on athletic teams
- Patients who go to daycare
- Bullous impetigo
Lichen planus versus psoriasis presentation
Lichen planus = pruritic, polygonal, flat topped papules and plaques with a purplish hue + Wichkam striae (fine white lines or streaks within the lesions)
Psoriasis = silvery scales, NO Wickham striae present, (+) Auspitz sign (bleeding with scale removal)
Lichen simplex chronicus presentation
Thickened skin with accentuated markings and minimal scaling 2/2 chronic scratching/rubbing
Abscess antibiotics of choice
Clinda, bactrim, doxy
***want MRSA coverage
First line treatment for squamous cell carcinoma in cosmetically or functionally sensitive areas (i.e. on the face)
Mohs micrographic surgery (surgical excision)
***can do curettage and electrodessication in less cosmetically sensitive areas (i.e. extremities, trunk)
Most common type of melanoma
Superficial spreading melanoma
Infantile hemangioma presentation
- MC located on the head and neck
- Manifest in the first few weeks after birth
- Superficial bright red nodule or plaque
Infantile hemangioma treatment
For complicated hemangiomas (> 5 cm, ulcerating lesions, organ involvement and those affecting the visual field) –> 1st line treatment is oral propranolol
For uncomplicated hemangiomas –> observation/no intervention needed
Difference between superficial and deep partial thickness burns
Superficial = erythematous and PAINFUL, thin-walled blisters that are NOT easily unroofed
Deep = NOT PAINFUL, blanchable, variable color, easily unroofed blisters
