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.