Ovarian torsion due to prenatally diagnosed cystic abdominal mass – case report and literature review

The majority of abdominal cystic formations in newborns are benign and usually originate from the urinary tract, genital system or gastrointestinal system. Fetal ovaries are predisposed to development of cysts due to the maternal hormonal environment of advancing gestational age. Prenatal diagnosis became possible with improvement of ultrasound techniques. Complex pattern of the cysts are at higher risk for complications, the most concerning being ovarian torsion and consequent compromised fertility. Management is controversial, involution of simple cysts few months after birth is possible considering the cease of ovarian stimulation by maternal and fetal hormones but surgical approach is more indicated in symptomatic or complex cysts. We report the case of a prenatally diagnosed cystic abdominal mass at 33 weeks of gestation with antenatal ovarian torsion and need for right oophorectomy in the neonatal period. At two months of age appearance of ovarian cyst was observed on the contralateral ovary by ultrasound, being managed conservatively.