<prompt> Good prognosis of ALLHyperdiploidyHypodiploidyT cell linePhiladelphia chromosome  <response>: Favourable prognostic markers for ALL include : 1 age bw 2-10 yrs 2 a low white cell count. 3 hyperdiploidy. 4 trisomy of chromosomes 4,7,10 5 presence of a t 12;21. Ref :Robbins pathologic basis of disease ; south east asia edition ;pg:592 