<prompt> Which of the following is a poor prognostic factor in Acute Lymphoblastic Leukemia ALL:Hyperdiploidyt 9; 22; t 4; 112-8 years of AgeWBC count 50,000  <response>: Unourable cytogenetics in ALL are Philadelphia chromosomes t9;22 t4;11 Ref: CMDT 2008 Edition, Page 447 