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What is All of the following are good prognostic factors for childhood ALL except- and explain in detail?
Favorable prognostic marker for ALL includes Age between 2 and 10 years A low white cell cout Hyperdiploidy Trisomy of chromosomes 4,7,10 Presence of a t (12;21) seen in pre B cell ALL Reference : Robbins and Cotran Pathologic basis of disease.South Asia Edition volume 1.page no. 592