Psoriasis - Etiology, Pathogenis and Clinical features Psoriasis Definition: Psoriasis is a common chronic recurrent multifactorial disease characterized by cutaneous inflammation, silvery scales, and parakeratotic immature cells in the stratum corneum due to accelerated epidermopoesis. Aetiology of … [Read more...] about Psoriasis – Etiology, Pathogenesis and Clinical Features