Double Bladder Sign: Three Cases of an Ultrasonographic Sign that Indicates Ovarian Torsion

Ovarian torsion is a surgical emergency that can be difficult to diagnose and can therefore lead to delayed treatment and loss of ovarian function. While the diagnosis of ovarian torsion is based clinically, several sonographic findings can suggest ovarian torsion, including an enlarged ovary, presence of an ovarian cyst or mass, or abnormal ovarian blood flow. Less commonly described is the finding of an abnormal ovarian location in a clinical setting concerning for torsion. We present three cases of ovarian torsion where an ultrasonographic finding of a “double bladder sign” aided in early detection of ovarian torsion.