P-091 小腸結腸側々吻合術後,晩期合併症として吻合部潰瘍をきたした2例(ポスター 結腸・肛門1,Better Life for Sick Children, Better Future for Pediatric Surgery,第45回日本小児外科学会学術集会) P-091 Ileocolic ulceration : A long-term complication following ileocolic anastomosis(Poster Session Colon, anus 1,Better Life for Sick Children, Better Future for Pediatric Surgery,the 45th Annual Meeting of Japanese Society of Pediatric Surgeons)