Scheter 2019.

Study characteristics
Methods	Retrospecting single‐centre matched cohort January 2011 to December 2016 Tel‐Aviv Sourasky Medical Center, Tel Aviv, Israel 24 participants
Participants	Inclusion: Patient with breast cancer with central tumours undergoing breast‐conserving surgery Exclusion: Patients who had subsequently proceeded to total mastectomy
Interventions	Intervention: Volume displacement ‐ mammoplasty, (n = 12) Control: BCS: WLE, (n = 12)
Outcomes	Primaryoutcomes: No outcomes of interest Secondaryoutcomes: Complications PROMs ‐ (self‐designed/Breast‐Q) Cosmetic evaluation ‐ self‐designed 13 person panel Other outcomes: Margins Further aesthetic procedures Length of stay
Notes	Declaration: One author is a speaker for Johnson Medical, no financial or personal declarations No funding declared