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Purpose: The aim of this study is to verify the feasibility of the 5th, 6th, and 7th editions of AJCC staging system by analyzing the 10-year overall survival (OS) and disease-free survival (DFS) of breast cancer patients according to the each editions of American Joint Committee on Cancer (AJCC) staging system that staged by 5th and 6th editions of AJCC staging system. Methods: A total of 419 breast cancer patients were analyzed who had received initial treatment between 1998 and 2003 at Pusan National University Hospital. Patients were restaged using 5th, 6th, and 7th editions of AJCC staging system with retrospective data and 10year OS and DFS analysis were performed. Results: The mean age of patients was 51 years old and the mean follow-up period was 138 months. Ten-year OS was 89.9% and DFS was 88.3%. Ten-year DFS was affected significantly by the tumor size, lymph node metastasis, differentiation of tumor, lymphovascular invasion, HER2 gene and triple negative breast cancer. The stage of breast cancer according to the 5th, 6th, and 7th edition of AJCC staging system and the each T and N stage of breast cancer was statistically significant in 10-year OS and DFS. Although the significance was confirmed between 10-year DFS in each edition, higher significance were found in more recent edition. Conclusion: Restaging and predict prognosis based on 7th edition of AJCC staging system would be helpful to patients who had been previously staged based on 5th or 6th system.

Purpose : Not only oncologic safety but also satisfactory cosmetic results can be achieved by oncoplastic breast surgery. Authors applied thorcoepigastirc fasciocutaneous flap as oncoplastic surgery for patient with lower or cental portion of breast cancer, to assess the usefulness of this procedure. Patients and methods : A total of thirty-eight patients with lower or central portion of breast cancer underwent a partial mastectomy with immediate thorcoepigastirc fasciocutaneous flap reconstruction. The clinicopathologic factors were analyzed retrospectively and the cosmetic outcomes were evaluated based on 4-point scoring system. Results : The mean follow-up period was 12.2 months and mean tumor size was 1.8 cm. The mean excised breast volume was 67.9 mm and the cosmetic result showed excellent in 21 (55.3%) and good in 13 (34.2%). Conclusion : The partial mastectomy with immediate thoracoepigastric fasciocutaneous flap would be a useful oncoplastic surgery for breast cancers which are located in lower or central portion of the breast.