Dermatofibromas (DF)
Dermatofibromas are brown, hard bumps that can sometimes mimic moles and are often of concern to patients. Some are red and inflamed but all share the features of a round shape and very firm texture. Common on the legs, DFs are usually the result of a bug bite, infected hair follicle or other skin injury that stimulates localized scar tissue production. Some may become itchy or painful or are repeatedly traumatized by shaving and need surgical treatment. In general, DFs do not need to be removed as long as they are not growing in size or changing shape.
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