Comparison of Clinical and Pathological Differences of Breast Cancer Patients under 35 and above 55 Years of Age

Objective: In this study, we aimed to evaluate the clinical, pathologic and management differences between breast cancer patients under 35 years of age and postmenopausal patients above 55 years of age. Materials and Methods: Patients who were operated on for breast cancer between November 2003 and March 2013 in our hospital were retrospectively analyzed. Patients were separated into two Groups according their age; Group 1 (<35 years) and Group 2 (>55 years). Results: 94 patients with breast cancer, 45 patients in Group 1 and 49 patients in Group 2, were included in the study. The mean follow-up was 51 (19-121) months and 50 (19-120) months in Groups 1 and 2, respectively. Stages of breast cancer at the time of diagnosis were similar between the two groups. The groups were similar in terms of rates of re-excision (p=0.42), local recurrence (p=0.34) and solid organ metastases (p=0.182). The number of oncoplastic and reconstructive procedures were higher in Group 1 (p=0.04). Regarding pathological results, the rate of grade 3 tumors, those with Ki-67>12 and triple negative breast cancer were found to be higher in Group 1. In addition, the number of patients receiving chemotherapy was significantly higher in Group 1 (p=0.03). Conclusion: Oncologic results were similar between young patients and postmenopausal patients. Nevertheless, tumor biology was found to be worse in young patients. In addition, oncoplastic and reconstructive approaches were significantly higher in young patients.