moreover , on the basis of cell surface phenotypes , tumors of b cell origin were divided into three major subgroups , which corresponded to the level of differentiation of the malignant tumor cell : pre-b cell stage ( non-t acute lymphoblastic leukemia and chronic myelocytic leukemia in lymphoid blast crisis ) ;
C0334227
malignant tumor cell
C0023473
chronic myelocytic leukemia