JOHN BAVOSI / SCIENCE PHOTO LIBRARY JOHN BAVOSI / SCIENCE PHOTO LIBRARY
Crohn's disease and ulcerative colitis. Artwork of the human digestive tract, showing Crohn's disease and ulcerative colitis. At top is the stomach; the small intestine is at centre, leading to the large intestine (colon). The small intestine is cut open (centre) to show Crohn's disease occurring usually near the junction of the large intestine. Crohn's disease produces inflammation and abscesses on the small intestine wall. At lower frame, the colon & rectum are affected by ulcerative colitis. This produces a dense pattern of rounded ulcers which relapse. Symptoms of both disorders may be diarrhoea, abdominal pain, blood loss. Treatment includes corticosteroid drugs & sometimes surgery.
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