Today I learned much more about my family's history with breast cancer. I knew that my paternal grand mother had it, but I didn't know that these members of that family also did: her sister [my paternal great aunt], her niece [my paternal 2nd cousin], her daughter [my paternal aunt], and another paternal great aunt]. This is all that I know of. The CDC classifies contagious health outbreaks as "clusters". Is the same true of BC? I had a biopsy in early 2007 that showed calcifications and I will continue on 6 mo mammos till they tell me not to. Can any data be collected at this point about this family history? It seems extreme to me that so many in one family can deal with this. Any thoughts? And thank you for your listening.