When Bad Genes Go Good (IMAGE) Yale University Caption Patients with a rare skin disease, ichthyosis with confetti, also have spots of normal skin which occur when mutations of disease-causing genes revert to normal during cell division. Credit Courtesy of Yale University 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.