TVD 2016

M. Ng, et al. (AGITG) Int J Radiation Oncol Biol Phys, 2012 ELECTIVE NODAL VOLUMES presacral space

mesorectum

inguinal lymph nodes

internal iliac lymph nodes

ischiorectal fossa

external iliac

lymph nodes

obturator lymph nodes

CTV borders for individual nodal groups