The principal goal of this study is to describe the epidemiology of breast cancer in the Brazilian population. Other specific goals are:
* To evaluate the demographic and socio-demographic profile, comorbidities and reproductive risks, anthropometric profile and family history.
* Characterize the breast tumors immunophenotype through anatomopathological data, such as: tumor grade, estrogen receptor, progesterone receptor, HER2, Ki67.
* Describe the screening tests, main symptoms and cancer stage in the moment of the diagnosis.
* Describe the initial cancer treatment and locally advanced such as surgery, radiotherapy, chemotherapy and endocrine therapy.
* Describe palliative treatment for recurrent or metastatic breast cancer: chemotherapy, radiotherapy, biphosphonate, and others.
* Evaluate the clinical outcomes such as: local or diffuse relapse, period of time until progression to metastatic cancer, global lifespan and specific breast cancer lifespan.
* Evaluate clinical complications of the metastatic disease, such as: brain metastasis, spinal cord compression, skeletal related events.
* Analyze the demographical and socio-economical characteristics, clinical-pathological characteristics of the tumor, treatment, clinical outcomes, type of institution (private/public), and other factors that may impact clinical outcome.
