The high level of significance of ZEB1 deletion in our cohort of SS cases, prompted us to re-examine the 10 K array dataset (see Materials and methods for details) and combine the 10 K and the SNP6 results to investigate the ZEB1 locus alterations in a total of 66 specimens from 43 SS patients and 3 CTCL cell lines (Table 1). This evidence concerns the gene ZEB1 and synovial sarcoma.