A l6-year-old　girl　with　Behcet’s　disease　who　had　been　treated　as　JIA

Abstract

　The　patient　was　16　year-old　girl，whose　chief complaint　was　polyarthralgia　and　low　grade　fever．　She　had polyarthritis　when　she　was　12 years　old　and　was　diagnosed　as　JIA　at　age　13．　She　was　treated　with　MTX　and　PSL． But　her　arthritis　was　fluctuated．We　had　been　consulted　about　her　arthritis　when　she　was　16　years　old．　HLA-B51 was　positive　and　recurrent　oral　ulcers　lead　us　to　a　diagnosis　of　Behcet’s　disease．　We　started　with　colchicines　and naproxen．Four　months　later，abdominal　pain　and　diarrhea　were　emerged．Colonoscopy　showed　multiple　ulcers at　the　ileocecum．　Consequently，she　was　diagnosed　as　having　gastrointestinal　Behcet’s　disease．　After　PSL　20　mg/ day　and　mesalazine　treatment，　she　remarkably　became　better．When　we　see　polyarthritis　in　children，we　should consider　Behcet’s　disease．