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Margin round involved organ
•
GYN IMRT consortium
–
Include entire mesorectum if uterosacral ligament involved
•
EMBRACE-II
–
In case of involvement of the pelvic wall, sacro-uterine ligaments,
mesorectum or other involved structures a
20 mm
margin around
the initial HR CTV-T will be extended into these structures
……..
in the direction of spread