TLS/FUS-ERG fusion gene in acute lymphoblastic leukemia with t(16;21)(p11;q22) and monitoring of minimal residual disease..     ///    This is the first report of an ALL patient with a TLS/FUS-ERG fusion transcript..     ///    Reverse transcriptase-polymerase chain reaction (RT-PCR) and direct sequence analysis showed TLS/FUS-ERG chimeric mRNA with a novel junctional pattern of exon 7 of TLS/FUS and exon 6 of ERG.     ///    TLS/FUS-ERG chimeric mRNA was not detected after CR. 