Editorial Comment.

The author reflects on the study about the role of prebiopsy magnetic resonance imaging (MRI) with prostate-specific antigen (PSA) density in detecting prostate cancer. He states several points that should be noted in the study including the authors recommended MRI study only to men with PSA density and protocols such as the diffusion-weighted rule. He also stresses that the findings of the research would not justify the remarkable cost of MRI study.