Importance of cystourethrography in neonates with imperforate anus.

Infants born with imperforate anus have a high incidence of genitourinary anomalies. Vesicoureteral reflux was the most common abnormality in this series. Since these patients often have bacteriuria, this is an important finding. An intravenous pyelogram and voiding cystourethrogram should be part of the evaluation of each neonate with imperforate anus. Persistent cloaca, a frequent finding in the female patients, may require special diagnostic attention.