MORPHOFUNCTIONAL CHARACTERIZATION OF MONO NUCLEAR PHAGOCYTES IN VENOUS-BLOOD LEUKOCONCENTRATE FROM HISTIOCYTOSIS PATIENTS

Morphological and cytochemical examinations of mononuclear phagocytes (MP) from venous blood leukoconcentrate were carried out in 25 patient s with chronic monocytic leukemia, 7 patients with malignant histiocyt osis, 3 patients with Langerhans' cell histiocytosis and 26 patients w ith reactive proliferations of the cells belonging to MP system associ ated with autoaggressive, infectious diseases or tumors. Morphofunctio nal features of MP from the patients with tumor and reactive histiocyt osis may serve additional criteria in differential diagnosis of the di seases in which pathological process runs with participation of MP sys tem cells.