Introduction
cancer, Breast cancer, breast cancers, breast cancer
BREAST CANCER RECURRENT, BREAST CANCER, MPBC, CANCER, BREAST CANCER
Breast cancer is the most common cancer in women. Metaplastic breast cancer (MpBC) is a rare histological subtype, accounting for 0.25–2% of breast cancers [Breast cancer is widespread in older women. However, because of the lack of standard treatment for older breast cancer patients, undertreatment leads to higher rates of breast cancer recurrence and mortality [The nomogram is a simple and reliable predictive tool that can predict patient survival based on risk factors affecting patient survival [