Korean J Hematol.  2000 Feb;35(1):67-71.

A t(3;3)(q21;q26) Acute Myeloid Leukemia with the Philadelphia Chromosome as a Secondary Change

Affiliations
  • 1Department of Clinical Pathology, Dong-A University, College of Medicine.
  • 2Department of Internal Medicine, Dong-A University, College of Medicine.
  • 3Department of Clinical Pathology, Dongrae Bongsaeng Hospital, Pusan, Korea.

Abstract

The Philadelphia chromosome (Ph) appears as a secondary change at the onset of disease. However, a late-appearing or secondary Ph has also been observed in rare cases of chronic myeloid leukemia and even more unusual events of acute myeloid leukemia. We recently experienced a 63-year-old female patient with the M1 subtype of acute myeloid leukemia. Cytogenetic studies revealed t(3;3)(q21;q26) as the primary change and the Ph translocation as the additional (secondary) anomaly. These findings further support the conclusion that the Ph plays a role not only in multistep leukemogenesis but also in clonal evolution related to disease progression.

Keyword

Philadelphia chromosome; Secondary event; Acute myeloid leukemia; t(3;3)
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