rheumatoid arthritis flare-up (IMAGE) Rockefeller University Caption Blood vessels in the soft tissue between joints, during a rheumatoid arthritis flare-up. Credit Laboratory of Molecular Neuro-oncology at The Rockefeller University Usage Restrictions Image may only be used to illustrate research described in the accompanying release. License Original 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.