The Microscopic Image (IMAGE) Academy of Finland Caption The microscopic image shows a lymph node where the PLVAP protein (in green) appears both in the blood vessels in the medulla and in the lymph vessels immediately beneath the capsule. All nuclei of the cells are shown in blue and a certain leukocyte subpopulation in purple. Credit The University of Turku 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.