Segmental breast resection removes only part of the breast tissue for breast cancer treatment, while mastectomy removes the entire breast. The study compared outcomes of 136 breast cancer patients who underwent either segmental resection (97 patients) or mastectomy (39 patients). Results showed that mastectomy had lower rates of recurrence, metastasis, and mortality compared to segmental resection, especially for patients with stage III cancer. Overall survival rates without recurrence or metastasis were also higher for mastectomy (89.7% and 97.4% respectively) than segmental resection (77.3% and 85.6% respectively). The study concluded that mastectomy resulted in better outcomes than segmental resection for patients in this study population.