# Mature Teratoma Arising in the Fallopian Tube

## TL;DR

A rare case of a mature teratoma in the fallopian tube was diagnosed and surgically treated in a 30-year-old woman.

## Contribution

This paper presents a rare clinical case of mature teratoma arising in the fallopian tube, emphasizing its diagnostic and surgical implications.

## Key findings

- A 5-cm mature teratoma was identified in the fallopian tube of a 30-year-old woman using imaging techniques.
- Laparoscopic surgery confirmed the tumor's origin from the fallopian tube, distinct from the ovary.
- Histologic analysis confirmed the diagnosis of a benign mature teratoma.

## Abstract

Mature teratoma of the fallopian tube is extremely rare. Most cases are incidentally diagnosed as originating from the fallopian tube following cesarean section, diagnostic laparoscopy, or examination of a surgical specimen. Here, we present a case of mature teratoma of the fallopian tube identified during laparoscopic surgery. A 5-cm mature teratoma was detected in the pelvic cavity of a 30-year-old Filipino female using transvaginal ultrasonography, computed tomography, and magnetic resonance imaging (MRI). Laparoscopy revealed a cystic tumor arising from the isthmus of the right fallopian tube, macroscopically distinct from the normal right ovary. The patient underwent laparoscopic right salpingectomy. Histologic analysis confirmed a benign, mature teratoma of the fallopian tube. Gynecologic surgeons should be aware of this rare entity, as it may be encountered incidentally during surgery and influence intraoperative decision-making.