The removal of a small piece of bone and bone marrow (usually from the hip) through a large needle. The sample is examined under a microscope to see whether cancer cells are present.
Bone marrow biopsy was performed during pancytopenia (WBC < 0. 1 x 109/1, Hb and PLT maintained by transfusions) and on G-CSF treatment on davs 19th and 21th post cytostatic treatment showing very hypoplastic bone marrow with 10% blast cells< /A > .< /A >