Target Volume Determination 2015

MESORECTUM

Anterior =For males, the penile bulb and prostate in the lower pelvis, and by the posterior edge of the seminal vesicles (SV) and bladder in the mid pelvis. In females, the boundary is formed by the bladder, vagina, cervix, and uterus.

Posterior =The presacral space

M. Ng, et al. (AGITG) Int J Radiation Oncol Biol Phys, 2012