[The immunocompetent structures of the skin and their role in the development of primary skin lymphomas].

Participation in immune reactions of main morphological skin structures (epidermal cells, skin associated lymphoid tissue, macrophagal and vascular systems) is described. Cooperation of these systems in immune reaction by means of complementary receptors on the cell membranes, adhesive molecules, cytokines and lymphokines is discussed. Primary malignant skin lymphomas are considered as tumors of the skin immune system.