Prognosis stage 3 breast cancer?

Depends: A lot of different factors are used to predict prognosis in breast cancer and stage is one. Grade (how similar or different from normal breast tissue) can impact. Also, hormonal sensitivity (er/pr status) and her2 status. For er+, oncotype DX testing gives additional biologic information to predict prognosis. Computer models (ie. Adjuvant online) can also help with prediction.

Curable!: Stage 3 means the tumor is large and/or the cancer has spread to many lymph nodes. It can still be cured with a combination of surgery, chemotherapy and radiation therapy. The risk of cancer returning depends on many factors-- age, # of involved lymph nodes, and whether the cancer has hormone receptors or her2. About 50% of stage 3 breast cancer patients are cured. Have hope!