Medicine General 99657a0b Which of the following is a poor prognostic factor in Acute Lymphoblastic Leukemia (ALL): A Hyperdiploidy B t (9; 22); t (4; 11) C 2-8 years of Age D WBC count < 50,000 High-Yield Explanation Unourable cytogenetics in ALL are Philadelphia chromosomes t(9;22) & t(4;11) Ref: CMDT 2008 Edition, Page 447