1014 / 1601
ESTRO IG and Adaptive
Course Parikh Budapest 2018
Target Volumes
GTV: Tumor + involved nodes
rectal exam, rigid proctoscopy, MRI, CT and/or PET
CTV : Elective lymph nodes +/- ischiorectal fossa for low tumors
Whole mesorectum
Standard: perirectal nodes, internal iliac, superior rectal artery
T4 – anterior structures = + external iliac
T4 or gross anal canal = +inguinal ln and external iliac LN
03/01/13
Myerson, Kachnic 2009