CCM Mouse Brain (IMAGE) Uppsala University Caption Blood vessels in a brain. Left: endothelial cells (turquoise blue) from a healthy brain. Right: cavernoma leads to increased cell division in the endothelial cells (nucleus marked yellow) in the veins and causes malformations. Credit Fabrizio Orsenigo Usage Restrictions This image may only be used when reporting about Fabrizio Orsenigo's research. 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.