434 / 1816
Margin positivity and re excision rates
•
Tumour resection volumes may
be much higher with oncoplastic
techniques than standard BCS
•
Rezai, in a large series of 1035
oncoplastic cases, achieved
primary clear margins in 88%,
which compares favourably with
the UK figure of 60-80%.
•
Most studies report margin re
excision rates similar to those of
standard BCS
•
Systematic review
(Yiannakopoulou 2016) showed
rates varying between 0 and
36% (this being a DCIS only
series where margins are more
challenging) and generally
tending to be low.
•
This may reflect the increased
volume resection making it
easier to excise widely for
relatively large tumours