A case of mature teratoma of the fallopian tube treated by laparoscopic surgery

Teratomas of the fallopian tube are rare and the majority of them are found at the time of surgery. Here, we report on a case of mature teratoma of the fallopian tube found incidentally at the time of laparoscopic surgery for an ovarian teratoma. A 37-year-old, nulliparous woman underwent laparoscopic surgery for a teratoma of the right ovary following hysteroscopic surgery for endometrial polyps. At the time of laparoscopic surgery, there were hairs out of the fimbriae of the right fallopian tube and there was a small tumor within the ampullary region of that area. Laparoscopic resection was performed because she desired pregnancy. Pathological examination showed a mature teratoma of the right fallopian tube and another of the ipsilateral ovary. Three months later, hysterosalpingography(HSG) confirmed patency of bilateral fallopian tubes. The patient conceived spontaneously five months after laparoscopic surgery and she delivered a healthy baby vaginally. Most tubal teratomas are found incidentally at the time of surgery. When we encounter such a rare disease, we must decide strategy during surgery.