Classificação de Bosniak para cistos renais complexos: Histórico e análise crítica

Abstract

The Bosniak classification for renal cysts was developed in the late 1980s in an attempt to standardize the description and managementof complex cystic renal lesions. Alterations were made to such a classification in the 1990s and, the last one, in 2005. Currently, fivecategories of cystic renal lesions are defined - namely, I, II, II-F, III and IV –, according to their degree of complexity and likelihood ofmalignancy. Despite being initially described for computed tomography, this classification has been also utilized with some advantagesalso for magnetic resonance imaging. The present article reviews the different phases of this classification, its diagnostic efficacy and the most controversial features of its use.