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Pyoderma gangrenosum is a condition that causes tissue to become necrotic, causing deep ulcers that usually occur on the legs. When they occur, they can lead to chronic wounds. Ulcers usually initially look like small bug bites or papules, and they progress to larger ulcers. Though the wounds rarely lead to death, they can cause pain and scarring. The disease was identified in 1930. It affects approximately 1 person in 100,000 in the population. Though it can affect people of any age, it mostly affects people in their 40s and 50s. ==Types== There are two main types of pyoderma gangrenosum:〔 * the 'typical' ulcerative form, which occurs in the legs * an 'atypical' form that is more superficial and occurs in the hands and other parts of the body Other variations are: * Peristomal pyoderma gangrenosum is 15% of all cases of pyoderma * Bullous pyoderma gangrenosum * Pustular pyoderma gangrenosum * Vegetative pyoderma gangrenosum 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「pyoderma gangrenosum」の詳細全文を読む スポンサード リンク
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