A lentigo, sometimes called an age spot or freckle, is the result of cumulative damage to the skin by sunlight. It consists of flat spots with increased pigmentation. Some spots may be fairly light, while others are darker. The edges are seldom uniform.
Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.