Infant with an ovarian cyst on prenatal ultrasound

Gross pathology image of in-utero ovarian torsion
Gross pathological image (above) shows the mass to be circular and cystic. Upon sectioning, the thin-walled cyst was filled with hemorrhagic, fibrinous material (below). Solid areas were not present.

The diagnosis was in-utero ovarian torsion due to a neonatal ovarian cyst resulting in an infarcted ovary.