Spontaneous Pregnancy in a Hysterosalpingo-Foam-Sonography (ΗyFoSy) Cycle: A Case Report and Review of the Available Literature.

Fallopian tube pathology is a very common cause of infertility for multiple couples worldwide. Tubal patency assessment is considered a crucial component of initial infertility evaluation with several evaluation tests available, such as hysterosalpingography (HSG), hysterosalpingo-contrast sonography (HyCoSy), and hysterosalpingo-foam sonography (HyFoSy), the latest tubal patency assessment, utilizing ultrasonography and a foam-based contrast agent. An additional side-benefit of these assessment tests is a fertility-enhancing effect, best studied with the application of HSG. In this report, we present a case of a 28-year-old woman with unexplained infertility who spontaneously conceived in the same menstrual cycle that the HyFoSy exam with ExEm® foam (ExEm Foam Inc., Nashville, Tennessee, United States) was performed, without any additional fertility enhancement interventions.