What birth defects accompany wilms' tumor?

Usually none.: The most common finding is an abdominal mass with no other symptoms/defects. Wt may be part of a congenital syndrome, which can involve absence of the irises and/or genital abnormalities in the case of WAGR syndrome; or enlarged head, enlarged tongue, abdominal wall defects, and eye/ear defects in the case of beckwith-wiedemann syndrome.

Many can: Wilms' tumor (a childhood kidney cancer) can be a part of other congenital syndromes such as WAGR syndrome, denys-drash syndrome, and beckwith-wiedemann syndrome. Other accompanying birth defects can include lacking the colored part of the eye, ambiguous genitalia, intellectual disability, large birth size, large tongue, intestinal malformation, and large eyes. Wilms' tumor can also occur alone.