Roentgenological findings in cryptorchidism.

Intravenous urography of 78 cryptorchid boys revealed no clinically significant upper urinary tract anomalies. Two boys had a rotated kidney and 2 others a double renal pelvis. One boy had previously been operated upon because of hydronephrosis. There thus appears to be no reason for routine intravenous urography of cryptorchid boys. Forty-two per cent of the boys had spina bifida occulta in the lumbar and sacral spine. One case of asymptomatic congenital cardiac disease was discovered at routine chest X-ray.