Oncoplastic Level 2 Mammoplasty for Large DCIS: 5-Year Results

Background Oncoplastic surgery (OPS) allows wider resections with immediate breast reshaping by mammoplasty. This study reviews our experience with level 2 mammoplasties in patients with histology-proven pure ductal carcinoma in situ (DCIS). Method From a prospectively maintained database of 392 consecutive oncoplastic level 2 mammoplasties, 68 patients presented with pure DCIS. Involved margin rates and locoregional recurrence rates were calculated, with 76 months (0–166 months) median follow-up. Results The mean pathological tumor size was 34 mm (median 26 mm, range 2–106 mm). The mean resection weight was 191 g (median 131 g, range 40–1150 g). Margins were clear in 58 cases (85.3%) and involved in 10 cases (14.7%). Margins were involved in 1 out of 54 (1.9%) cases with tumor size under 50 mm and in 9 out of 14 (64.3%) cases with tumor size higher than 50 mm ( p 50 mm [odds ratio (OR) 95.400; p