The efficacy of the new Bosniak classification v.2019 in benign lesions prediction within the higher Bosniak cysts classes.

Introduction: Identification of benign lesions among higher classes of renal Bosniak cysts who are vulnerable to active surveillance instead of surgical approach is still questionable. We aimed in this study to delineate the efficacy of the new Bosniak v2019 classification in benign lesions identification among those cases with higher Bosniak classes in comparison with the final histopathology.

Materials: In a retrospective review between 2010 and 2021 for patients diagnosed as higher classes Bosniak renal masses was done.