Objective: To discuss the possible role of abnormal embryo migration as a cause of ectopic pregnancy during IVF with hydrosalpinges.
Design: Case report.
Setting: University-based reproductive endocrinology and fertility clinic.
Patient(s): A patient presenting with a tubal ectopic pregnancy after spontaneous conception in a preexisting hydrosalpinx.
Intervention(s): Laparoscopic salpingectomy.
Main outcome measure(s): Ultrasound and operative findings.
Result(s): Case demonstration of abnormal embryo migration into a surgically documented preexisting hydrosalpinx during a spontaneous conception.
Conclusion(s): The mechanism of increased tubal ectopic pregnancy rates during IVF with hydrosalpinges remains unexplained. This case supports abnormal embryo migration due to the hydrosalpinx as a contributing factor.