The most frequently associated defects of anorectal malformations / imperforate anus that require immediate attention are those of the urinary tract.
Infants with anorectal malformations require an ultrasound examination of the abdomen to detect a urinary obstruction. If the ultrasound examination is abnormal, a more detailed urologic evaluation is indicated.
Associated defects of the digestive tract include an obstruction of the esophagus (tube that carries food and liquids from the throat to the stomach).
Known as esophageal atresia, this condition can also cause leakage from the digestive tract into the lungs, and requires surgical correction so the child can eat.
Children born with anorectal malformations / imperforate anus may also have abnormalities in the bones, particularly the sacrum bone and the lumbosacral spine, and heart.
All infants diagnosed with an anorectal malformation should have a thorough cardiac evaluation with an echocardiogram before undergoing surgery.
An ultrasound of the spine will help to rule out the presence of a condition called tethered cord.