First of all, thanks to all for their thoughts and prayers.

First visit to vet just happened.

Took a few samples - all looked clear - maybe inflammation, but last time she had cancer, it was surrounded by inflammation. On the upside, hopefully her body does that and it would surround any cancer to keep it isolated. He's worried because it's close to where a lymph node is, but checked all the others and they all seem fine. With her history, chances are it's SOMETHING, but at least there were a couple good signs. Plus he said it's more in her shoulder, not her neck, which could be a lot trickier. Based on how it feels/the location, he thinks he can get to it and get it out, but we have to wait and see what the biopsies say - will hear back on Thurs.

Decent chance it will have to be operated on and taken out no matter what they can tell, but we'll cross that bridge in a few days.

Thanks again everyone - I'll update as I learn anything.