Nipple-sparing mastectomy in patients with preoperative diagnosis of non-invasive breast carcinoma. A single-center experience

BACKGROUND: Nipple-sparing mastectomy (NSM) is a recognized treatment for selected patients with breast cancer (BC). Our study aimed to analyze 7 years' experience in NSM and breast reconstruction for patients with preoperative diagnosis of non-invasive BC. PATIENTS AND METHODS: All NSMs with breast reconstruction, performed between January 2007 and December 2013 in patients with preoperative diagnosis of non-invasive BC, were considered. RESULTS: Thirty-five NSMs were performed, 23 cases confirming the diagnosis of non-invasive BC, and in 12 patients it also resulted in findings of an invasive component. Patients were stratified into two groups: breast reconstruction was performed i) with silicone definitive implant, ii) with a temporary breast tissue expander. An invasive component at the postoperative histological examination was significantly associated with tissue expander reconstruction (p=0.03). CONCLUSION: In selected cases, NSM is a valid and safe procedure. Further critical evaluations are required for more evidence on this argument.