Imaging of Cystic Renal Masses

This article provides an updated review on the imaging evaluation of cystic renal masses with focus on the Bosniak classification system, discusses current imaging techniques for evaluating these lesions, reviews benign and malignant etiologies of cystic renal masses, describes pitfalls in the evaluation of these lesions, and discusses current and future directions in the management of cystic renal masses.