1982 Volume 24 Issue 2 Pages 325-329_1
A 27-year-old female who was admitted with a complaint of melena discharged a lump of teratoma from the anus. By the surgical operation, ovarial teratoma penetrating into the sigmoid was confirmed, and a part of tumor was discharged from the anus. Since this patient was considered to be a rare case, this paper includes a review on similar cases reported in Japan.