[Cellular elements of the blood in the realization of tumor and host interrelations]

The role of blood cells leukocytes and erythrocytes in realizing the tumour and host interrelation is analyzed. Using new approaches to evaluation of the morphological and functional state of these cells (haloformation and echinocytosis indices) the data on ambiguous role of neutrophilic granulocytes and on peculiarities of changes in the surface architectonics of erythrocytes in the malignant process have been obtained. Changes in their state are emphasized as very important for realizing tumour and host interrelations.