WAGR ComplexOther Names: WAGR Complex; Mental Retardation Syndrome; Wilms Tumor-Aniridia-Gonadoblastoma-Mental Retardation syndrome; Chromosome 11p deletion syndrome; 11p deletion syndrome; AGR triad; Wilms tumor-aniridia-genitourinary anomalies-intellectual disability syndrome.
WAGR syndrome is a rare genetic syndrome in which there is a predisposition to several conditions, including certain malignancies, distinctive eye abnormalities, and/or intellectual disability. WAGR is an acronym for Wilms tumor, Aniridia, Genitourinary problems (such as undescended testicles or hypospadias in males, or internal genital or urinary anomalies in females), and Range of developmental delays. A combination of two or more of these conditions is usually present in most individuals with WAGR syndrome. The syndrome is caused by a deletion of genetic material on the short (p) arm of chromosome 11. In most cases, this genetic change occurs spontaneously during early embryonic development (de novo) for unknown reasons (sporadic). Only rarely is the mutation inherited. Treatment of WAGR syndrome is aimed at addressing the specific symptoms that are present in each individual.

Newborn children with WAGR syndrome are soon noted to have aniridia. The clinical suspicion for WAGR may be increased with the presence of other genital anomalies, though genitourinary anomalies are not always present, particularly in girls. In older children, clinical diagnosis of the syndrome can be made when aniridia and one of the other features are present. While aniridia is rarely absent in WAGR syndrome, cases have been reported without it. Chromosomal analysis is necessary for definitive diagnosis. Other common eye defects include cataracts and ptosis. About 50% of people develop Wilms’ tumour.