Résumé
Rheumatoid vasculitis is a necrotizing arteritis of unknown causes that affect a subset of patients with rheumatoid arthritis. Vasculitis associated with rheumatoid arthritis was first recognized in 1898. It was described frequently in the 1940s through 1960s but is now rarely diagnosed. Typical clinical features include constitutional symptoms, mononeuritis multiplex, skin infarction, ulceration, peripheral gangrene and visceral infarction. Gastrointestinal involvement occurs in 10 to 38% of cases of rheumatoid vasculitis and may include bowel infarction, ulceration, perforation, colitis, stricture, or bleeding. Ischemia of the intestine is the end result of interruption or reduction of its blood supply. However, the clinical manifestations of intestinal ischemia range from mild chronic symptoms to a catastrophic acute episode, depending on the vascular supply involved, the extent of the occlusion or ischemia, and the rapidity of the process. Physicians caring for patients with rheumatoid arthritis should be aware that intestinal ischemia or infarction may occur without overt clinical evidence of systemic rheumatoid vasculitis. Herein we describe a case of rheumatoid vasculitis manifesting as ischemic colitis which was intractable to medical therapy and led to subtotal colectomy.