Keratosis is any skin growth, such as a wart or callus, in which there is overgrowth and thickening of the skin. Keratosis is an area of the skin that is overgrown or thickened. Actinic keratosis is thickening of the outer layer of the skin caused by prolonged exposure to sunlight bump or patch of thickened skin is known as a hyperkeratotic lesion. Other types of hyperkeratosis include Chronic eczema, Eczema is a condition in which patches of dry, scaly skin develop.
Common warts, also known as verruca vulgaris, is a common dermatological condition that causes small, fleshy growths on the skin.
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