Cytological analysis of bone marrow present in the bone nodules induced by human FL cells in mice.

Bone marrow cells recovered from bone nodules induced in mice by intramuscular transplantation of human FL cells were compared with the host femoral bone marrow. The precursors and mature forms of all types of blood cells were found in the induced bone marrow. The concentration of lymphocytes was significantly higher, and that of erythropoietic cells significantly lower in the induced bone marrow as compared with heterotopic femoral bone marrow.