FRANCOIS L'HOPITAL, ISM / SCIENCE PHOTO LIBRARY FRANCOIS L'HOPITAL, ISM / SCIENCE PHOTO LIBRARY
Colon in ulcerative colitis. Endoscope view of the colon of a patient with ulcerative colitis, an inflammation and ulceration of the lining of the colon. This condition causes bloody diarrhoea and abdominal pain. Its cause is not known. This is the disease in an active phase.
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