Lichen Squamosus

Lichen squamosus (or Psoriasis) is a chronic genetically determined skin disease characterized by focal or widespread skin lesions and deposition of immunocompetent cells in the dermis. The disease can manifest itself in isolation, as well as in combination with other autoimmune, multifactorial skin or systemic diseases, with Sjögren's syndrome. The pathogenesis is based on immune complex skin lesions. When a disease occurs, the barrier function of the skin is disrupted, metabolic disorders appear in skin cells, their sensitivity to external irritants and allergens increases, and immune