This research is targeting patients with sonographically indeterminate adnexal mass that are being referred for clinical MR imaging. Investigators from the UW will be contributing coded MR images and associated health information (US results, laboratory/pathology results) to the EURAD trial. In addition, outcomes data on each patient will be sent at month 24 of the research.

An adnexal mass is the most common indication for gynaecological surgery. Pre operative characterization is crucial and a scoring system would be useful to standardize the imaging report and thus, improve patients management. Recently, the coordinating center developed the first MR scoring system named ANDEXMR SCORING system in a retrospective study which is accurate and reproducible. The objectives of this trial are to perform an external prospective validation of this scoring system to evaluate its potential impact on therapeutic strategy and to test its reproducibility.

This is a prospective large multicenter study. All patients with a sonographically indeterminate adnexal mass referred for MR imaging will be included from each participating center. One senior and one junior radiologists independently analyze the different MR criteria to characterize adnexal masses. The reader will then classify the mass using ADNEXMR SCORING system.

Inclusion Criteria:

• Patients 18 years of age or older
• With indeterminate ultrasonographic adnexal mass

Exclusion Criteria:

• Patients under 18 years of age

All patients with an indeterminate ultrasonographically adnexal mass referred for MR imaging

Images and associated data will be labeled with a unique study number that identifies the research site and the patient number (e.g. UWisc001). The link to identifiable information will remain at the University of Wisconsin