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URL of this page: //medlineplus.gov/ency/imagepages/2974.htm
Post-inflammatory hyperpigmentation - calf
Overview
Hyperpigmented concentric rings over the tibia are secondary to prior inflammation. Residual hemosiderin from broken down red blood cells in macrophages, left behind after inflammation pigments the skin.
Review Date 6/3/2025
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.
