Macrophage (image) University of California - San Diego Share Print E-Mail Caption Scanning electron micrograph shows a macrophage. Credit Image courtesy of National Cancer Institute. Usage Restrictions Must credit NCI. Share Print E-Mail 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.