Seborrheic keratosis lesions (IMAGE) Massachusetts General Hospital Caption This is a picture of Seborrheic keratosis lesions on a patient's back. Credit James Heilman, MD, via Wikimedia Commons 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.