Sensation After Nipple Sparing Mastectomy and Breast Reconstruction With or Without Neurotized Free Tissue Transfer

To determine the timing and distribution of sensation recovery of breast after mastectomy and breast reconstruction, both with autologous and implant-based reconstruction. Also, to determine the role of innervated free tissue transfer in breast reconstruction. Specific Aims 1. Determine the timing and degree of return of breast in women who underwent mastectomy with autologous tissue or with implant based reconstruction. 2. Determine sensation following neurotized free flap reconstruction 3. Determine whether neurotization has an impact on quality of life measures post operatively Study Design Patients will be enrolled prospectively in this data collection study in which they will receive the standard of care for breast cancer resection and oncologically safe and accepted means of breast reconstruction with tissue expander and/or prosthetic implants. Patients will receive additional, non-invasive sensory testing, performed at standard follow up intervals in clinic by their reconstructive team. All patients participating in the study will be consented for enrollment at the pre-operative visit by either the surgeon or physician assistant. As this is a prospective study, all women fitting inclusion criteria over a 6-month minimal, but projected goal 12-month period will be included.