External Ear Malformation (IMAGE) WashU Medicine Caption A normal ear (top left) is compared with various external ear malformations that are common in children born with aural atresia, the absence of an external ear canal. This condition typically affects only one ear and is an underappreciated cause of learning and language delays, a new study shows. Credit National Institutes of Health Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.