Obesity: a new feature of WAGR (del 11p) syndrome.

A 6-year-old girl with del(11)(p14p12) is reported. This girl has the multiple congenital anomalies that defines the WAGR syndrome (aniridia, external genital hypoplasia and severe mental retardation). She has, in addition, very severe obesity (+10 SD) which is not a feature usually described with WAGR association.