Deletion of the short arm of chromosome 11 with a variable phenotype: Congenital absence of the iris, genitourinary abnormalities and mental retardation known as aniridia-ambiguous genitalia-mental retardation (AGR) triad; Wilms tumor-aniridia-ambiguous genitalia-mental retardation (WAGR) syndrome; Wilms tumor associated with congenital absence of the iris, genitourinary abnormalities, hemihypertrophy, mental retardation, and other anomalies termed AWTA
