Background/Objectives: Teratomas are the most common germ cell tumors, occurring mainly in the gonads. Extragonadal germ cell teratomas (EGGCTs) are less common but can develop anywhere along the midline structures, with uterine location being extremely rare. On an ultrasound, uterine teratomas are frequently misinterpreted as polyps or myomas. Case Presentation: We report a 27-year-old asymptomatic woman who was diagnosed with a mature uterine teratoma originating from the lower uterine segment and extending to the cervix. We treated this patient with the IBS® Integrated Bigatti Shaver. This is the first reported case of the IBS® being used to remove uterine teratomas. At follow-up, the patient recovered uneventfully and subsequently achieved a successful term pregnancy. Conclusions: Preoperative MRI is recommended for uterine teratomas. The IBS® technique offers an effective and fertility-preserving approach for excising uterine teratomas, providing rapid procedure, superior visualization, and the prevention of tumor dissemination. In this report, we discuss the mechanism, diagnosis, and treatment of teratomas and review the previous literature.
Hu et al. (Sat,) studied this question.