Successful Filler Injection (image) University of Washington Caption This image shows a mouse ear after a successful cosmetic filler injection. The filler, in green, rests in the tissue without blocking the blood vessels and veins. Credit Siavash Yousefi, U of Washington Usage Restrictions Photo credit required. 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.