Fig. 5From: Clinical impact of early minimal residual disease detection at day 15 in precursor B-childhood acute lymphoblastic leukemia: an Egyptian experienceAn interphase FISH analysis applied at diagnosis using LSI break apart MLL probe positive for 11q23 rearrangements, 1 yellow signal (juxtaposed red and green) represents the normal copy of MLL gene in addition to one green signal and one red signal represent the rearranged copy of MLL (11q23 rearrangement)Back to article page