Xanthomas are raised, waxy-appearing, frequently yellowish-colored skin lesions. They may be associated with an underlying lipid (cholesterol/triglyceride) abnormality.
David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.