Occurrence of BCR-ABL rearrangement in a Philadelphia chromosome-negative patient with 5q and 13q deletions and myeloproliferative syndrome.
1998
We report the case of a patient with a myeloproliferative syndrome and traits of myelodysplasia and myelofibrosis whose karyotype showed 5q and 13q deletions, as well as Philadelphia chromosome negativity. A molecular biology study performed by Southern blot, with a probe covering the M-bcr region, led to detection of three bands other than the germinal ones, which hints at the possible existence of two cut points in the M-bcr region of an allele, or participation of both alleles. The patient presented a complex hematological picture, which might be explained on the basis of the cytogenetic and molecular findings.
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