Tumour boundary (IMAGE) ETH Zurich Caption Image of tumour boundary taken using fluorescence microscopy. The new marker molecule shows the boundary of the tumour in blue; the tumour tissue can be seen above it on the left. Green: collagen, red: cell nuclei. Credit ETH Zurich / Matthew Aronoff Usage Restrictions - 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.