t(3;21)(q26;q22) with AML1 rearrangement in a de novo childhood acute monoblastic leukaemia

Bertil Johansson, Thoas Fioretos, Stanislaw Garwicz, Sverre Heim, Felix Mitelman

Research output: Contribution to journalArticlepeer-review


t(3;21)(q26;q22) is a recurrent chromosomal abnormality in Philadelphia-positive chronic myeloid leukaemia in blast crisis and in treatment-related myelodysplastic syndrome and acute myeloid leukaemia. The molecular consequences of the t(3;21) are presently being unravelled; various transcripts between the AML1 gene in 21q22 and several unrelated genes, i.e. EAP, EVI1 and MDS1, in 3q26 are generated, resulting in the formation of a chimaeric transcription factor. The t(3;21) has only rarely been described in de novo leukaemias and never before in an acute leukaemia in a child. We here present the clinical, cytogenetic and molecular genetic findings in a boy with a de novo acute monoblastic leukaemia with t(3;21)(q26;q22) and AML1 rearrangement.
Original languageEnglish
Pages (from-to)429-431
JournalBritish Journal of Haematology
Issue number2
Publication statusPublished - 1996

Subject classification (UKÄ)

  • Hematology

Free keywords

  • childhood
  • acute leukaemia
  • translocation
  • AML1


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