In 20 patients with myeloid malignancies and isolated trisomy 11 an internal tandem duplication of the MLL and FLT3 genes was observed in 41% and 31% of the cases, respectively; 80% of the FLT3+ cases showed MLL self-fusion. Concomitant presence of MLL and FLT3 anomalies could be relevant in determining the poor outcome of patients with acute myeloid leukemia with trisomy 11.
Rege-Cambrin, G., Giugliano, E., Michaux, L., Stul, M., Scaravaglio, P., Serra, A., Saglio, G., & Hagemeijer, A. (2005). Trisomy 11 in myeloid malignancies is associated with internal tandem duplication of both MLL and FLT3 genes. Haematologica, 90(2), 262-264. https://hdl.handle.net/2078.5/99158 (Original work published 2005)