Seminal vesicles. (a) Coronal T2WI showing the prostate and seminal vesicles. Seminal vesicles are high signal-intensity fluid-filled pouches with a low signal-intensity wall, arranged in a grapelike pattern. White arrowheads: prostate-seminal vesicle angle; PB: penile bulb; L: levator ani; black arrowheads: external urethral sphincter; PZ: peripheral zone. Seminal vesicles. (b) Axial T2WI showing the seminal vesicles. Seminal vesicles are high signal-intensity fluid-filled pouches with a low signal-intensity wall, arranged in a grapelike pattern. BL: bladder; R: rectum with endorectal coil.
