Sad news. Hopefully the chemo does its job and she's back to full health again soon.
I can't imagine the extra stress all the public speculation has caused for her at such an already horrible time. I'm currently waiting for some test results myself and although I'm hoping it's not cancer, even if it is at least I'll have some control about who knows what and when.
I guess everyone wanting to know your business is the price you pay for being in that family, but still - there's a lot of gossipmongers who should be ashamed of themselves right now.