Psoriasis

Question 1

Define psoriasis.

Answer 1

Psoriasis is a chronic inflammatory skin disease characterised by erythematous, circumscribed scaly papules, and plaques. It can cause itching, irritation, burning, and stinging.

Question 2

Explain the aetiology/risk factors of psoriasis.

Answer 2

Genetic
Infection
Local trauma

Question 3

Summarise the epidemiology of psoriasis.

Answer 3

In most developed countries, prevalence is between 1.5% and 5.0%; there is some evidence that prevalence is increasing in these regions. The mean age of onset is 28 years, with equal distribution between men and women.

Question 4

Recognise the presenting symptoms of psoriasis. Recognise the signs of psoriasis on physical examination.

Answer 4

Skin lesions
Skin discomfort

Question 5

Identify appropriate investigations for psoriasis and interpret the results.

Answer 5

Usually no tests are necessary.