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Flashcards in dermatology Deck (19)
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1

common location SCC

lower lip, head and neck, external ear, forehead, scalp

2

in melanoma, when does vertical growth phase occur

after radial growth

3

Basal cell typically located

upper lip (rarely mets)

4

drugs that can cause psoriasis

beta blockers, lithium, NSAIDs, ethanol

5

Bullous pemphigoid pathophysiology

IgG Abs against dermal-epidermal basement membrane proteins (hemidesmosomes) -> leads to supepidermal bullae

6

Bullous pemphigoid and Pempigus vulgaris imaging

-immunofluorescence shows linear deposits of IgG and C3
- in base memb in BP (deep)
- in epidermis in PV (superficial)

7

Bullous pemphigoid negative or positive Nikolsky's sign?

negative

8

Pempigus vulgaris typical age and culture

40-60 (and higher prevalence in jewish, mediterranean, asian people)

9

bullous pemphigoid typical age

60-80

10

Pempigus vulgaris Nikolsky's sign

sliding or rubbing pressure on skin causes suparation of epidermis

11

most common causes of erythema multiforme

mycoplasma pneumonia, HSV (rarely drugs - sulfonamides, penicillin, phenytoin)

12

pityriasis rosea is typically from

Human Herpesvirus 7

13

pityriasis rosea begins as a what, which develops into a what?

herald patch --> christmas tree distribution on trunk

14

a furuncle is aka

boil

15

what is a furuncle

deep folliculitis (infx of hair follicle) usually from staph a

16

what is a felon

subcutaneous abscess on fingertip - usually occurs after severe paronychia or puncture wound on finger pad

17

what is a carbuncle

abscess larger than a boil, deep seated from multiple furuncles

18

vitiligo can be caused by what autoimmune conditions

hashimotos, hypoparathyroidism, addison's, Type 1 DM

19

Tx for impetigo

mupirocin (protein synth inhib)