Persistent hypervascularity of the corpus luteum in the setting of acute ovarian torsion.

The corpus luteum with associated stromal edema (CLOE) is 1 of the most common mimics of acute ovarian torsion without a lead-point mass, both on imaging and clinically. Peripheral hypervascularity of the corpus luteum in the setting of ovarian stromal edema has been described as potentially having negative predictive value for ovarian torsion. The presented cases demonstrate that corpus luteum hypervascularity may persist in the setting of acute torsion. When considering CLOE as an alternative diagnosis to ovarian torsion, it is critical that the finding of corpus luteum hypervascularity does not supersede more specific or concerning findings for ovarian torsion, such as a twisted vascular pedicle or a surgical abdomen/peritoneal signs. Hypervascularity of the corpus luteum may also be present in the setting of intermittent ovarian torsion. When there is suspicion for adnexal torsion, early gynecological consultation increases the chance for preservation of ovarian function and fertility.