Cytogenetic patterns in ETV6/RUNX1‐positive pediatric B‐cell precursor acute lymphoblastic leukemia: A Nordic series of 245 cases and review of the literature

Abstract excerpt

Between 1992 and 2004, 1,140 children (1 to<15 years) were diagnosed with B-cell precursor acute lymphoblastic leukemia (ALL) in the Nordic countries. Of these, 288 (25%) were positive for t(12;21)(p13;q22) [ETV6/RUNX1]. G-banding analyses were successful in 245 (85%); 43 (15%) were karyotypic failures. The modal chromosome numbers, incidence, types, and numbers of additional abnormalities, genomic imbalances,...

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