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Varicose eczema on the leg of a 92-year-old man. This condition is caused by poor circulation in the veins and results in darkened patches and dry, scaly skin. Eczema is an inflammation of the skin accompanied by itching and blisters. Eczema may be treated using soothing ointments and corticosteroids. (KEYSTONE/SCIENCE PHOTO LIBRARY/TONY CRADDOCK)