Background: In breast cancer surgery, the association of reductive mammoplasty to oncological excision, allows more extensive excisions, reducing radical surgery and preventing secondary deformities. This is called oncoplastic or tumor specific mammary reconstruction. Aim: To report 37 patients in whom oncoplastic surgery was Used. Material and Methods: Retrospective descriptive series of 37 patients aged 38 to 65 years, subjected to oncoplastic mammary surgery, that were followed for a median of 42 months. Results: Eighty six percent considered the cosmetic result of surgery as satisfactory. One patient had a local relapse associated to systemic dissemination at 16 months. One patient died and one is under hormonal treatment for bone metastases. No significant complications or delays in oncological therapies were recorded. Conclusions: Oncoplastic surgery may avoid mastectomy and prevent deformities in breast cancer surgery.