Here's her full post: I very recently learned that I have breast cancer. It was detected through a regular mammogram. It’s a little scary, but my prognosis is good and I expect a full recovery. I will be in St Louis for the next 3 weeks receiving treatment. During this time my staff will continue to assist Missourians and I will be posting on my Senate website (McCaskill.senate.gov) how I would have voted on any matters that come before the Senate during my absence—which I’ll also enter into the Congressional record. Additionally, I'll be submitting questions in writing for any missed Senate hearings. Thank you for the honor of serving you in the Senate. Read more http://www.huffingtonpost.com/entry/claire-mccaskill-breast-cancer_us_56cb7686e4b0ec6725e38155
