Ovarian carcinoma with fistula formation to the sigmoid colon and ileum: Report of a case

We describe herein an extremely rare case of clear cell type ovarian carcin oma resulting in fistula formation into the colon and intestine. The patien t was a 61-year-old woman in whom a large tumor with extravasation from the sigmoid colon was found by barium enema examination. The tumor was preoper atively diagnosed as left ovarian cancer by angiography which showed the tu mor feeder arising from the left ovarian and uterine arteries.