SIL-TAL1 deletion in T-cell acute lymphoblastic leukemia..     ///    "Here we used a polymerase chain reaction (PCR) assay to identify the 90 kb SIL-TAL1 deletion in a group of 19 cutaneous T-cell lymphomas and a series of 142 T-ALL patients (76 children, 66 adults). "    ///    "While none of the T-cell lymphoma exhibited a SIL-TAL1 recombination, seven T-ALL cases showed a type d1 and two patients a type d2 deletion. "    ///    Sequence analysis of SIL-TAL1 breakpoints revealed marked heterogeneity at the junctional region among the nine patients due to random deletion and insertion of N-region nucleotides or templated P-nucleotide addition mediated via illegitimate V(D)J recombinase action. 