Scan of Right Hip (IMAGE) University of Warwick Caption This is a computerized tomography (CT) scan of right hip. The arrow shows the area of ball that is more egg shaped. As the hip moves this rubs unevenly on the socket damaging the cartilage, causing pain. Credit University of Warwick 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.