Psoriasis

Question 1

what is psoriasis

Answer 1

chronic, autoimmune disease characterised by well-demarcated. erythematous, scaly plaques

Question 2

risk factors for different types of psoriasis

Answer 2

Guttate psoriasis - streptococcal sore throat

Palmoplantar psoriasis - smoking, middle-aged women, autoimmune thyroid disease

Generalised pustular psoriasis - hypoparathyroidism

drugs are a risk factor (BALI- Beta blockers, Antimalarials, Lithium and NSAIDs)

Question 3

what cutaneous changes will be seen in psoriasis

Answer 3

Itchy, well-demarcated circular-to-oval bright red/pink elevated lesions (plaques) with overlying white or silvery scale, distributed symmetrically over extensor body surfaces and the scalp.

Question 4

what is the Auspitz phenomenon

Answer 4

pinpoint bleeding with removing scales

Question 5

what is the Koebner phenomenon

Answer 5

skin lesions may develop at points of trauma/ scars

Question 6

what are the signs of psoriatic arthritis

Answer 6

Asymmetrical oligoarthritis

Symmetrical polyarthritis

Distal interphalangeal joint predominance

Arthritis mutilans

Psoriatic spondylitis

Question 7

what investigations will be done for psoriasis

Answer 7

clinical diagnosis

Question 8

what is the management of psoriasis

Answer 8

corticosteroids and vitamin D