When contouring the prostate bed for salvage XRT, do you include the mesorectal fat anterior to the rectum or just the mesorectal fat at or below the levator ani?

The classic 2010 RTOG consensus statement separates the posterior border by the pubic symphysis. Per this statement, inferior to the symphysis, the posterior border should extend to the rectal wall, whereas superior to the symphysis, the posterior border should extend to the mesorectum.

I think in pr...