Introduction: Breast cancer is defined as an accelerated and uncontrolled proliferation of glandular cells. In Mexico it is the second most common type of cancer and is the leading cause of cancer death in women between 50-59 years old. Ductal carcinoma in situ corresponds to approximately 90% of localized breast cancers. Current surgical techniques allow a correct comprehensive treatment of cancer, without the loss of the anatomy that affects the quality of life of the patient. Objective: We aim to compare the results of the international bibliography on the skin flap technique, with those obtained with the case presented below. Case report: A 50-year-old female with no relevant medical history, was diagnosed with carcinoma in situ grade III of the left breast. She is scheduled for total left mastectomy with lymphatic mapping, sentinel node biopsy and breast reconstruction with prosthesis and flap. Conclusion: The skin flap technique is a technique that offers excellent results, with a very low probability of necrosis, which is why it turns out to be a safe course of action.