Bent Hand (IMAGE) Oxford University Press USA Caption A ring finger locked in a bent position as seen in Dupuytren's disease, colloquially known as the "Viking disease." Credit Hugo Zeberg/ Molecular Biology and Evolution Usage Restrictions N/A 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.