Gynae BT 2017

CTV-T LR initial

a. Initial CTV-T HR

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b. The complete parametria bilaterally

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c. The entire uterus

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• d. Uninvolved vagina with a 20 mm margin measured from the most inferior position of the initial HR CTV-T, along the vaginal axis (not starting in the fornix)

• e. CTV-T HR plus a margin of about 5 mm anterior and posterior towards bladder and rectum (excluding the non involved walls)

• f. In case of involvement of the pelvic wall, sacro-uterine ligaments, meso- rectum or other involved structures a 20 mm margin around the initial HR CTV-T will be extended into these structures.

• g. Any pathological lymph nodes in the parametrium may be included