Sweden Cancerome Analysis Network - Breast : Genomic Profiling of Breast Cancer

This trial is collecting and studying genetic (genomic) profiles from breast cancer tumors across Sweden to build a large research database. The goal is to give scientists and doctors a detailed picture of the genetic differences between breast cancers, which could lead to better, more personalized treatments in the future. **You may be eligible if...** - You have a suspected or confirmed diagnosis of primary breast cancer (meaning breast cancer that has not spread from another location) - You are willing and able to sign the informed consent form to allow your tissue and data to be used for research **You may NOT be eligible if...** - You have not signed the informed consent form agreeing to participate - Your breast cancer is a recurrence rather than a newly identified primary tumor (discuss with your doctor) Talk to your doctor to see if this trial is right for you.