We report on three patients with acute non-lymphoblastic leukemia (ANLL) displaying the same chromosomal translocation t(11;15)(q23;q14). The clinical course of the disease was aggressive, and survival was short. The FAB subtype was M-2 in two cases, and M-1 in the remaining patient. Immunologically two cases showed aberrant expression of a lymphoid antigen (CD19 and TdT, respectively). HTRX1/MLL gene was rearranged in one patient studied at the time of diagnosis. These results plus data scattered in the literature show that the t(11;15)(q23;q14) can be added to the list of recurrent rearrangements in ANLL involving 11q23.
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