CAMAL, ISM / SCIENCE PHOTO LIBRARY CAMAL, ISM / SCIENCE PHOTO LIBRARY
Ulcerative colitis. Endoscopic view of the colon of a patient with ulcerative colitis (UC), showing excessive mucous production (mucous hypersecretion). UC is an inflammation and ulceration of the colon that causes bloody diarrhoea and abdominal pain. The cause is not known. Treatment is with anti-inflammatory drugs, and in severe cases surgical removal of the colon.
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