MedlinePlus Medical Encyclopedia: Post-inflammatory hyperpigmentation

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Post-inflammatory hyperpigmentation - calf

Hyperpigmented concentric rings over the tibia are secondary to prior inflammation. Residual hemosiderin from broken down red blood cells in macrophages, left behind after inlammation pigments the skin.

Update Date: 4/16/2007

Updated by: Michael S. Lehrer, M.D., Department of Dermatology, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network.

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