PI-RADS version 2.1 for the evaluation of transition zone lesions: a practical guide for radiologists
Caterina Gaudiano, Arianna Rustici, Beniamino Corcioni, Federica Ciccarese, Lorenzo Bianchi, Riccardo Schiavina, Francesca Giunchi, Michelangelo Fiorentino, Eugenio Brunocilla, Rita Golfieri
Abstract
Multiparametric MRI has been established as the most accurate non-invasive diagnostic imaging tool for detecting prostate cancer (PCa) in both the peripheral zone and the transition zone (TZ) using the PI-RADS (Prostate Imaging Reporting and Data System) v. 2.1 released in 2019 as a guideline to reporting. TZ PCa remains the most difficult to diagnose due to a markedly heterogeneous background and a wide variety of atypical imaging presentations as well as other anatomical and pathological processes mimicking PCa. The aim of this paper was to present a spectrum of PCa in the TZ, as a guide for radiologists.