Untreated and Treated Vitiligo (IMAGE) University of California - Irvine Caption Further multiphoton microscopy (MPM) imaging of patients undergoing punch grafting treatment showed that metabolically altered keratinocytes persist in non-responders but normalize in treatment responders. Credit UCI School of Medicine Usage Restrictions None 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.