• Akinori Wada, Masaaki Higashiyama, Dai Hirata, Suguru Ito, Rina Tanemoto, Shin Nishii, Akinori Mizoguchi, Kenichi Inaba, Nao Sugihara, Yoshinori Hanawa, Kazuki Horiuchi, Yoshihiro Akita, Kazuyuki Narimatsu, Shunsuke Komoto, Kengo Tomita, and Ryota Hokari.
• Department of Internal Medicine, National Defense Medical College, Japan.
• Intern. Med. 2022 Feb 15; 61 (4): 475-480.

AbstractTakayasu arteritis (TA) sometimes presents with colitis, which may be diagnosed as inflammatory bowel disease unclassified (IBDU) because of atypical or mixed findings of ulcerative colitis (UC) and Crohn's disease. We herein report an 18-year-old girl presenting with colitis with an occasional high fever eventually diagnosed as TA with IBDU. Colonic inflammation was initially discontinuous and stronger in the proximal colon, atypical of UC. However, over 10-year observation, the distribution of colonic inflammation varied and became UC-like. Variations in TA-related colonic inflammations over time have been unclear. Our long-term observation might help clarify the details of TA-related colonic inflammation.

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