skin diseases

Question 1

etiology of psoriasis

Answer 1

1. HLA Cw6 and B57 region
2. autoimmune disease. Lesions of psoriasis are
   associated with increased activity of T cells
3. persons with HIV
4. stress

Question 2

pathogenesis of psoriasis

Answer 2

increase in the turnover rate of dermal cells
23 to 3–5 days
due to the combined
immune response of T helper cells and their interleukins
natural killer (NK)
cells and NK-T cells also play a role