Psoriasis Flashcards
1
Q
what is psoriasis caused by?
A
genetics (TH1 and TH17)
environment (stress, drugs, infection)
2
Q
presentation
A
chronic, demarcated, erythematous plaques with silver scales
extensor surfaces
symmetrical distribution
3
Q
nail changes
A
onycholysis
pitting
dystrophy
subungual hyperkeratosis
4
Q
define Koebner’s phenomenon
A
occurs on an area of previous trauma
5
Q
define Auspitz sign
A
removal of surface scale reveals tiny bleeding points
6
Q
systemic diseases associated
A
arthritis
Crohn’s
cancer
7
Q
management
A
vitamin D analogues coal tar dithranol emollients steroid ointment phototherapy systemic treatments e.g. methotrexate
8
Q
examples of vitamin D analogues
A
calcipotriol
calcitriol
9
Q
use of dithranol
A
few plaques
short contact
