ESTRO Multidisciplinary Management of Breast Cancer 2017

complete seroma cavity present

1.5 cm minus free margin

Tumor Micr. extension

Region with microscopic extension, within 1.5 cm of primary tumor

Excision, with free resections margins > 1.5 cm in some directions

Rim of excision

1.5 cm minus free margin

Seroma cavity

Tumorbed : That part of the rim of the seroma cavity where the resection margin is < 1.5 cm cav

Excision, with free resection margins < 1.5 cm in all directions

CTV

Boersma et al, 2012