Xanthomas are lesions on the skin containing cholesterol and fats. They are often associated with inherited disorders of lipid metabolism (inherited problems with the way that fats are broken down and used).
Review Date 5/31/2023
Updated by: Ramin Fathi, MD, FAAD, Director, Phoenix Surgical Dermatology Group, Phoenix, AZ. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.