Prostate cancer. (a) Axial T2WI showing multifocal peripheral zone tumors (ā). Notice the subtle asymmetric posterolateral bulging along the left rectoprostatic angle which would be concerning for possible extracapsular extension (arrowheads). TZ: transition zone with BPH changes; R: rectum with endorectal coil; PZ: normal-appearing peripheral zone. Prostate cancer. (b) Coronal T2WI through the central portion of the left posterolateral peripheral zone tumor (ā). Again notice the subtle asymmetric posterolateral bulging which would be concerning for possible extracapsular extension (arrowheads).
