Coexistence of cells with unmasked and masked Ph1 in a case of chronic myeloid leukemia in blastic phase.
Bone marrow from a patient with chronic myeloid leukemia in blastic phase at diagnosis showed cells with t(9;22), as well as others with a 22q+ marker. The marker was due to t(8;22), and consequently, these cells presented a masked Ph1: t(8;9;22) (q24.2;q34;q11). The marrow contained a wide variety of abnormal clones, which formed an evolutionary pedigree. The pedigree allowed location of the stage of evolution at which masking of the Ph1 had taken place.
D005075:Biological Evolution; D001853:Bone Marrow / Q000503:physiopathology; D002478:Cells, Cultured; D002869:Chromosome Aberrations; D002904:Chromosomes, Human, 21-22 and Y; D002906:Chromosomes, Human, 6-12 and X; D006801:Humans; D007621:Karyotyping; D007951:Leukemia, Myeloid / Q000235:genetics*; D015470:Leukemia, Myeloid, Acute / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D014178:Translocation, Genetic