It's been a long week or so of waiting, waiting, waiting to see what will happen with Mia.
Very sadly, it appears that she may not be well cat for a long time. Her pathology tests are inconclusive, but certainly indicate that there is a problem in her lymph gland. We have been offered the suggestion from the RSPCA to surrender her and after much thought (and a few tears) that's what we've decided to do. :(
When we return from our trip, we will go back and find ourselves a new cat to love.