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By eHow Careers & Work Editor
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Keratoacanthoma is a type of mostly benign skin tumor that begins with overexposure to sun, which damages the skin and causes improper growth of cells in the hair follicles. Keratoacanthoma creates red, dome-shaped eruptions on the skin with central craters. These grow rapidly (in a week or two) and then usually shrink spontaneously over the course of several months, often leaving scars in their wake. Here are some ways to treat keratoacanthoma.
eHow Careers & Work Editor