Do site and type of metastasis in breast cancer show a changing pattern with increased age? A cross comparison of clinicopathological characteristics between age groups

摘要

In here, we evaluated pattern of metastasis and cross-compared clinicopathological features between different age groups with breast cancer (BC). This study was conducted in the Shiraz Breast Cancer Registry (largest BC registry in Iran). Patients were classified as 60?years old (group 3). The three age groups were compared regarding clinical and baseline characteristics. Overall, 564 individuals entered group 1, 4519 group 2, and 670 group 3. Group 1 had lower rates of tumor necrosis (p 60?years old had more lung metastasis (33 vs. 12.6 and 6.7% for groups 2 and 1, respectively) (p?