CD34-positive blastoma in a patient with idiopathic myelofibrosis
1Division of Hematology, University of Tsukuba.
Abstract:
We report CD34-positive "blastoma" which developed in a patient with idiopathic myelofibrosis (IMF). A 48-year-old woman was diagnosed as having essential thrombocythemia, then the disease had transformed into IMF 41 months later. Finally, a subcutaneous tumor, composed of blastic cells positive for CD34 but negative for lineage-specific antigens, developed without any evidence of systemic leukemia transformation.
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