Figure 1 .

Cumulative risk of renal failure in five subgroups of patients defined hierarchically by the presence of a specific congenital anomaly or syndrome or intralobar nephrogenic rests (ILNR), DDS, Denys–Drash syndrome; WAGR, Wilms' tumour/aniridia syndrome; GU anomaly only, isolated male hypospadias or cryptorchidism; unilateral, ILNR, unilateral disease with ILNR but without any listed syndrome or anomaly; unilateral, no ILNR, unilateral disease without ILNR and without any syndrome or anomaly. Reproduced by permission of Edward Arnold Limited. NWTSG data provided by Dr N Breslow.