First-in-human, Study of MATTISSE® Tissue Engineering Chamber in Adult Female Patients Undergoing Breast Reconstruction After Mastectomy for Cancer

Inclusion Criteria: Criteria related to pathology: * Female patient over 18 Years old * Patient who required autologous breast reconstruction: * Immediate unilateral reconstruction after total mastectomy for early-stage breast cancer * Breast reconstruction after unilateral preventive total mastectomy * or delayed unilateral reconstruction after total mastectomy for early-stage breast cancer with a tissue expander implantation * or conversion from implant-based to autologous reconstruction: Patient who had a breast implant during a previous reconstruction after total mastectomy for cancer, and who needs to change it. * For patient with active cancer: Patient with early-stage cancer (stage 0, I or II, with tumor size \< 50mm, without lymph-node involvement) needing oncological management that does not required radiotherapy after surgery on the breast area or on the flap donor site * Patient who required Nipple sparing (NSM) or Skin sparing mastectomy (SSM) with a unique surgical approach (same for mastectomy and implant) insertion; or implant removal for patient undergoing autologous conversion, or expender removal for patient undergoing differed reconstruction. * Autologous reconstruction using Lateral Intercostal Perforator (LICAP) flap or an intercostal thoracic artery perforation flap (LTAP) if oncological conditions do not allow for LICAP harvesting. * Patient medically fit for surgery without significant comorbidities * Breast cup-size less than D * Body mass …