Patient Scan with Lung Nodule Circled (IMAGE) University of Pennsylvania School of Medicine Caption Scan of a patient in the Penn Medicine-led study with a lung nodule, circled in red. Credit Penn Medicine Usage Restrictions None License Original 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.