Seeing inside a Tumor (image) The Optical Society Caption The new imaging tool reveals strikingly different networks of blood vessels surrounding different types of tumors in a mouse model. Left: breast cancer in the breast. Middle: metastatic breast cancer in the brain. Right: ectopic breast cancer in the skin. Credit Nature Medicine Usage Restrictions Must include caption & 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.