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Ulcerative colitis. Coloured X-ray of the abdomen of a 30 year old man with ulcerative colitis. This is an inflammation and ulceration of the colon that causes bloody diarrhoea and abdominal pain. This is a severe case affecting the whole colon. The cause of ulcerative colitis is not known. Treatment is with anti-inflammatory drugs and in severe cases surgical removal of the colon.
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