Metastasis (IMAGE) Albert Einstein College of Medicine Caption Images of metastasis (tumor spread) in lungs of two mice: untreated tumor (left) and a tumor in which autophagy has been blocked (right) . Metastatic areas are dark pink (arrows). A tumor’s ability to metastasize decreases dramatically when autophagy is halted. Credit Albert Einstein college of 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.