Rapid diaphyseal destruction. An unusual osseous manifestation of chronic granulocytic leukemia

A patient with chronic granulocytic leukemia developed an unusual rapidly progressive mid-diaphyseal femoral lesion. Differentiating this myeloblastic lesion from other round cell tumors is most reliably done by a Wright-Giemsa stained touch preparation. Prompt palliative therapy with long bone stabilization permitted the patient to remain ambulatory until shortly before his death.