Psoriasis

Question 1

what is psoriasis caused by?

Answer 1

genetics (TH1 and TH17)

environment (stress, drugs, infection)

Question 2

presentation

Answer 2

chronic, demarcated, erythematous plaques with silver scales
extensor surfaces
symmetrical distribution

Question 3

nail changes

Answer 3

onycholysis
pitting
dystrophy
subungual hyperkeratosis

Question 4

define Koebner’s phenomenon

Answer 4

occurs on an area of previous trauma

Question 5

define Auspitz sign

Answer 5

removal of surface scale reveals tiny bleeding points

Question 6

systemic diseases associated

Answer 6

arthritis
Crohn’s
cancer

Question 7

management

Answer 7

vitamin D analogues
coal tar
dithranol
emollients
steroid ointment
phototherapy
systemic treatments e.g. methotrexate

Question 8

examples of vitamin D analogues

Answer 8

calcipotriol

calcitriol

Question 9

use of dithranol

Answer 9

few plaques

short contact