Abstract

Bosniak  was  the  normal  radiological  assessment  procedure  for  cystic  renal  lesions.  Originally, it relied on computed tomography (CT) scan results and subsequently extended to magnetic resonance imaging (MRI). Renal cell carcinoma (RCC) surveillance was not enhanced in the past 20 years. Bosniak classifications depend on different morphological modifications in renal cysts such as septa development, wall thickening of nodal elements, wall and/or septa calcification, hyperdense cystic composition and contrast enhancement following intravenous contrast injection. Bosniak group comprised four categories, I and II lesions normally benign, Group III possibly malignant and IV mostly malignant. Recently, Category IIF (BIIF) was added, including cysts that cannot be easily differentiated from either Class II or III. The aim of this study was to investigate the surveillance and clinical outcome of Bosniak IIF renal cysts. We searched for retrospective evidence of Bosniak IIF renal cysts, cystic renal lesions, Bosniak IIF lesions, Carcinomas, Renal Cell, and Malignant Neoplasms obtainable up to April 2019. We selected articles published in English. The following databases were searched; PubMed and Google Scholar. The discovery of Bosniak Category IIF is considered as a successful method in renal cyst diagnosis and treatment possibly resulting in nephron-sparing during complicated renal cyst care.

Keywords

kidney neoplasms, carcinoma, bosniak classification