MedlinePlus Medical Encyclopedia: Actinic keratosis

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Actinic keratosis - ear

These pre-malignant lesions (brown) are actinic keratoses. They are scaly and rough, and there is evidence of bleeding. They are shown here on a typical, sun-exposed area of skin.

Update Date: 10/17/2006

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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