Prognostic significance of high hyperdiploid and tri-/tetraploid adult acute myeloid leukemia.
Purpose To ascertain the clinical implications of high hyperdiploid (HH; 49-65 chromosomes) and tri-/tetraploid (TT; >65 chromosomes) adult acute myeloid leukemia (AML), all such cases were retrieved from the Swedish AML Registry. Results Of the 3,654 cytogenetically informative cases diagnosed between January 1997 and May 2014, 68 (1.9%) were HH (n=50)/TT (n=18). Patients with HH/TT were older th