title: Y chromosome duplication in chronic myeloid leukemia.
abstract: Y chromosome duplication appeared in a patient with chronic myeloid leukaemia (CML) during blastic crisis. Additional chromosome changes were present. Y chromosome duplication may be a minor route of karyotype evolution in CML.
mesh_terms: D000328:Adult; D001853:Bone Marrow / Q000648:ultrastructure; D002869:Chromosome Aberrations; D002871:Chromosome Banding; D002904:Chromosomes, Human, 21-22 and Y / Q000648:ultrastructure; D006801:Humans; D007621:Karyotyping; D007951:Leukemia, Myeloid / Q000235:genetics*; D015470:Leukemia, Myeloid, Acute / Q000235:genetics; D008214:Lymphocytes / Q000648:ultrastructure; D008297:Male; D012730:Sex Chromosomes / Q000648:ultrastructure*; D013154:Spleen / Q000648:ultrastructure; D014998:Y Chromosome / Q000648:ultrastructure*