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.