Abstract
A 73-year-old woman underwent sigmoidectomy for sigmoid colon cancer. Three months later, she had hematochezia. Colonoscopy revealed a elevated lesion 10 mm in diameter on the suture line. Its diameter increased to 30 mm in 1 month. The pathological finding was Group II. Laparotomy was perforemed for prevention of ileus. Laparotomy showed migration of fimbriae of oviduct into anastomosis in the previous sigmoidectomy. Because the anastomosis was performed without any trouble during operation, this migration seems to occur in postoperative course. Migration of fimbriae of oviduct into anastomosis has not been reported in Japan.
