Coronal T2-weighted MR image of the scrotum shows a high-signal-intensity testis within each hemiscrotum. A low-signal-intensity capsule, the tunica albuginea, surrounds each testis. The epididymis (long arrow) is low signal intensity compared with the testis. Also note the small left-sided hydrocele (*), spermatic cord (arrowhead), and varicocele (short arrow).

http://radiographics.rsna.org/content/23/1/215.full