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13 Cards in this Set

  • Front
  • Back
What UV radiation does SPF as used in sunscreens describe?
UVB. UVA penetrates deeper and causes most visible sun damage. UVB penetrates more superficially and can cause sunburns and skin cancer.

1. Abrasion
2. Ulceration
3. Laceration
4. Echymosis
5. Contusion
6. Thermal burns
7. Sun burns

What is an effective, primary intervention to treat burns?
1. Erosion of epidermis, Superficial, heals without scarring
2. Deeper wound into dermis and below. Heals by secondary intention, granulation tissue formation
3. Incisional, clean cuts through skin; suturing recommended, primary intentions healing
4. Bruising, color changes becos Hg breaksdown into biliverdin (green/yellow)
5. Blunt trauma, edema and/or echymosis, cold application early
6. 1st degree - red; 2nd degree - blisters; 3rd degree - anesthetic
7. Rhytids (wrinkles), telangiectasia, lentigenes, solar purpura

Apply cold compress. This allows for vasoconstriction to limit injury.
What may multiple lesions of cafe au lait indicate?
Von Recklinghausen's Disease
What are the ABCDEs of
A - Assymetry
B - irregular Border
C - irregular Coloration
D - Diameter >6mm
E - Evolution/change
Describe and differentiate the following:
Parakeratosis, Hyperplasia, orthokeratosis, acanthosis, dyskeratosis, hyperkeratosis
Parakeratosis: Thickening of the stratum corneum with retained nuclei
Hyperkeratosis: Thickening of the stratum corneum
Hyperplasia: Thickening of the epidermis
Orthokeratosis: Thickening of the stratum corneum without retained nuclei
Acanthosis: Thickening of the stratum spinosum
Dyskeratosis: Pre-mature keratinization of keratinocytes
Which skin lesions are caused by infections?

How are they differentiated?
Erythema multiforme - exanthema (erythematous papules)
Erythema nodosum - tender erythematous nodules
Allergic vasculitis - palpable purpuric nodules
Which skin lesions are caused by autoimmune disorders?

How do you differentiate them?
Periungal telangiectasia - SLE

Allergic vasculitis - antigen-antibody autoimmune complexes
Which lesions are caused by drug reactions?

How are they differentiated?
Mobiliform drug reactions
Erythema multiforme
Allergic vasculitis
Erythema nodosum
Which skin lesion is seen in urticaria?
Which skin lesions shows civatte bodies (dyskeratosis)?
Lichen planus
In which skin lesions do you see koilocytes/halo bodies?
Skin infections of viral origin
What differentiates Lichen Planus from psoriasis histologically?
Lichen planus has a thick horizontal stream of lymphocytes in the dermis and shows very little hyperplasia. there are civatte bodies.

Psoriasis shows excessive parakeratosis with elongated rete ridges
What causes Verica vulgaris?

Describe this lesion histologically.
Verica vulgais/common wart caused by HPV.

Cup-like lesion, papillomatous retes, koilocytes, hypergranulosis, angiogenesis