Abstract
Philadelphia-negative (Ph-neg) essential thrombocythemia (ET), polycythemia vera (PV) and idiopathic myelofibrosis (IMF) form a syndrome of related chronic myeloproliferative disorders (MPD) characterized by expansion of one or more of the hematopoietic progenitors. Based on our previous finding of BCR-ABL transcripts in bone marrow aspirates of 12/25 Ph-neg ET patients, we have expanded our study up to 40 patients. Here we describe the rational for performing this study and report 19 of 40 patients who have BCR-ABL transcripts in their BM, 11 of them carry b3a2 and 8 carry b2a2. The two groups, BCR-ABL positive and negative, were completely identical with regard to clinical characteristics and laboratory data. We also report preliminary results of our attempt to examine concordance or discordance of BCR-ABL expression in the peripheral blood and bone marrow of Ph-neg ET patients.
Published Version
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