Xanthomas are raised, waxy-appearing, frequently yellowish-colored skin lesions, seen here on the knee. These may be associated with an underlying lipid (cholesterol/triglyceride) abnormality.
Review Date 4/16/2019
Updated by: Michael Lehrer, MD, Clinical Associate Professor, Department of Dermatology, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.