84%

In other news, the results of my genetic testing are back. It wasn't a surprise to learn that I have a genetic predisposition for breast cancer. I find all this stuff fascinating (I just wish it didn't apply to me). Here's a blurb from the report:

The results of this analysis are consistent with the germline BRCA2 mutation 2378delG, resulting in premature truncation of the BRCA2 protein at amino acid position 729. Although the exact risk of breast and ovarian cancer conferred by this specific mutation has not been determined, studies of this type of mutation in high-risk families indicate that deleterious mutations in BRCA2 may confer as much as an 84% risk of breast cancer and a 27% risk of ovarian cancer by age 70 in women (Am. J. Hum. Genet. 62:676-689, 1998).

I just can't get over that I had an 84% chance of getting breast cancer. This doesn't really impact the treatment of my breast cancer, although I'll be going in to talk to Dr. Z (the surgeon not the oncologist) about dealing with the risk of ovarian cancer.