Well, good news so far. The swelling may only be an extension of an earlier (benign) lipoma, or fluid from a previous op. She will have an oral exam under anesthesia on Monday to confirm/biopsy/possibly drain fluid. Her chest x-ray showed no lung mets on the initial read, which is as good news for dogs as it is for humans. My dad and his doggy companion are down in the family room watching TV together.