Human PAX6 gene is originally identified in chromosomal region 11p13 as one related with WAGR (Wilm's tumor, Aniridia, Genitourinary malformations and mental Retardation) syndrome [18], [19], which is a rare genetic disorder caused by chromosomal deletion of the 11p12-p14 region. This evidence concerns the gene PAX6 and Wilms tumor.