Peritoneal Metastasis (IMAGE) Optica Caption The researchers combined multiphoton microscopy with automated image and statistical analysis algorithms to distinguish between healthy and diseased tissue. In this image, collected in a completely label free, noninvasive manner, collagen is colored green while ovarian metastatic cell clusters are presented in red. Credit Dimitra Pouli, Thomas Schnelldorfer, and Irene Georgakoudi, Tufts University and Lahey Hospital and Medical Center 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.