Objective: The authors demonstrate the case of left adnexal torsion caused by 2 benign teratomas in its ovarian and tubal location. Design: Case report. Setting: Department of Obstetrics and Gynecology, 1st Faculty of Medicine and General Teaching Hospital, Charles University, Prague. Case: 24-years old woman underwent laparoscopy for several days lasting pain in lower abdomen and ultrasound finding of semicystic mass in the left adnexal region with suspicion of teratoma. The benign teratoma of the left ovary together with a torsion of the left Fallopian tube distended by teratoma was revealed during surgery. Left side salpingectomy and enucleation of the ovarian teratoma has been performed. This surprising finding was confirmed by histopathological examination. Conclusion: The acute gynaecological torsion event may be caused not only by torsion of uterine fibroid or enlarged tumorous ovary but rarely also by a teratoma of the Fallopian tube.

        Key words: adnexal torsion, teratoma of Fallopian tube