ACC (IMAGE) University of Pennsylvania School of Medicine Caption The National Cancer Institute (NCI) has once again rated the Abramson Cancer Center of the University of Pennsylvania (ACC) as "exceptional," the highest possible rating for an NCI-designated comprehensive cancer center. Credit Penn Medicine 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.