MORPHOLOGICAL PECULIARITIES OF THE BONE-M ARROW BLASTS AND THE OUTCOME OF TREATMENT OF CHILDREN WITH ACUTE LYMPHOBLASTIC-LEUKEMIA

There has been found that in the children whose treatment was ineffect ive and had fatal outcome, the mean diameter of bone marrow blasts was 12.7 +/- 0.5 mu m. In these children the treatment of which led to a steady remission, the mean diameter of bone marrow blast cells was 9.0 +/- 0.4 mu m. The blasts of children from the first group had micro-p rocessings of cytolemma. The above mentioned differences in the peculi arities of bone marrow blasts are assumed to be helpful for the progno sis of the treatment of this disease.