A case series on fetal ovarian cysts

Objective: We aimed to discuss the ultrasonographic characteristics and follow-ups of 7 fetuses which were established with the diagnosis of prenatal fetal ovarian cyst and followed up between 2012 and 2017. Cases: Sonographic findings and prenatal and postnatal progress of a total of 7 cases with fetal ovarian cyst which were detected by chance during the routine gestational follow-ups performed in the third trimester of pregnancy were presented. While four of the seven cases were lost during prenatal and postnatal periods, it was observed that 3 cases persisted in their follow-ups. Conclusion: Fetal ovarian cysts are the abdominal cystic masses which are diagnosed with a gradually increasing frequency. The majority of them are functional cysts. Regular follow-up of the cyst size and ultrasonographic characteristics is the most frequently used method in the approach. Waiting for follow-up and spontaneous regression in fetal ovarian cysts which do not exhibit septation and increase in the size, and have thin walls and no heterogeneous cystic content seems to be an appropriate approach.