[Immunology of non-Hodgkin lymphomas].

Cytological and kinetic immunological homogeneity is typical of such lymphomas. Their cytogenesis is broadly connected to the development and differentiation of lymphocytes. It is mainly a question of proliferating B lymphocytes of which the monoclonal membrane receptors are tumoral markers. The final stage of B lymphocyte differentiation is the lymphoplasmacellular proliferation involving monoclonal Ig secretion and consequently the rarefaction and finally disappearance of surface receptors.