Severe intestinal involvement in Wegener's granulomatosis.

A case of Wegener's granulomatosis is described, in which the presentation was blood stained mucus diarrhoea. Severe ileal, caecal, and rectal involvement improved rapidly after treatment with cyclophosphamide, azathioprine, and prednisolone. Although intestinal disease is an uncommon feature of Wegener's granulomatosis, both in our own experience (four of 45 cases) and in the literature, this diagnosis should be considered in view of the response to appropriate therapy.