title: Cytogenetic studies of chronic myelocytic leukemia in children and adolescents.
abstract: In a 3 1/2 year cytogenetic study of 107 leukemia patients diagnosed in childhood and adloescence, 8 presented with chronic myelogenous leukemia (CML). Seven of the 8 had chromosomal abnormalities. Six had the Ph1 chromosome; 5 had the usual 9;22 translocation. Two patients had involvement with chromosome 15; one had a 9;15 translocation in Ph1 positive cells during remission while a second had a 1;15 translocation during blastic crisis. The 2 patients who did not have a Ph1 chromosome survived 13 and 30 months, respectively, considerably less time than the 4+ year survival in most of those with Ph1 positive CML.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D002869:Chromosome Aberrations; D002900:Chromosomes, Human, 1-3; D002901:Chromosomes, Human, 13-15; D002904:Chromosomes, Human, 21-22 and Y; D002906:Chromosomes, Human, 6-12 and X; D005260:Female; D006801:Humans; D007951:Leukemia, Myeloid / Q000235:genetics*; D008297:Male; D011379:Prognosis; D014178:Translocation, Genetic; D014314:Trisomy