TY - JOUR T1 - Ulcerative colitis complicating seronegative HLA-A2-B27 rheumatoid arthritis with sacroiliitis. JF - Annals of the Rheumatic Diseases JO - Ann Rheum Dis SP - 1009 LP - 1011 DO - 10.1136/ard.51.8.1009 VL - 51 IS - 8 AU - T Klausen AU - K Amris AU - P Helin Y1 - 1992/08/01 UR - http://ard.bmj.com/content/51/8/1009.abstract N2 - The case is reported of a 50 year old man with longstanding seronegative rheumatoid arthritis who developed ulcerative colitis. The patient also had sacroiliitis and his tissue was typed as HLA-A2-B27 several years before the bowel disease began. A possible overlap between primary inflammatory bowel disease, complications to the treatment of rheumatoid arthritis with drugs, and gastrointestinal rheumatoid vasculitis is discussed. ER -