Neutrophils in Tumor (image) Helmholtz Centre for Infection Research Caption This is a fluorescence image showing a neutrophil (in red) going out of the blood vessel (in green) into a tumour. These immune cells facilitate tumour vessel growth, thus connecting the tumour with the vital blood supply. Credit HZI/Jablonska-Koch Usage Restrictions The image may only be used with appropriate credit. 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.