Macrophage (IMAGE) University of Pennsylvania School of Medicine Caption Macrophages are immune cells just like T and B cells, but differ in that they can eat cells that are not supposed to be in the body. 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.