What form of breast cancer is the deadliest? Triple-negative breast cancer (TNBC) is considered an aggressive cancer because it grows quickly, is more likely to have spread at the time it’s found, and is more likely to come back after treatment than other types of breast cancer.
What is the type of breast cancer with the worst prognosis? The poorest prognosis is for metastatic breast cancer (also known as stage IV or advanced breast cancer). This is when the cancer has spread beyond the breast and nearby lymph nodes to other parts of the body. Learn more about breast cancer treatment.
What is the best breast cancer to have? Tubular ductal carcinoma is a rare diagnosis of IDC, comprising only 2% of breast cancer diagnoses. The name comes from how the cancer looks under the microscope — like hundreds of tiny tubes. Tubular breast cancer has an excellent prognosis.
What type of breast cancer spreads the fastest? By definition, stage 4 breast cancer is the fastest spreader, since it already has metastasized beyond the breast tissue. Other factors that can affect how quickly your breast cancer may spread include: the age at which you’re diagnosed.