Will try to be brief...
Tibetan Terrier, aged 12.5 years. Went to the vet the other week for a scale and polish/possible extractions under GA. At this point I should say that, apart from his dodgy teeth (mea culpa), he is a healthy boy - still runs around, walks for an hour-plus every day, no issues with food etc etc
They did a blood test pre- the GA and found a spike in results in enzymes in his liver. Didn't do the dental work and took some more samples to send off for analysis.
Those results say:
Degeneration of liver cells
Inflammation in the liver
No infectious organisms
No cancer detected (in the sample they took)
Plus a list of things it could be: some kind of liver disease/gall bladder infection/hepatitis and some other less likely things. If it's an infection, there is a possibility that it's been caused by his bad teeth.
So now, they've given me two options:
1 A biopsy and bile sampling to determine what it actually is, under GA (so blood tests first again). As I'm sure you can imagine, this will be ££££. Then, we'll discuss treatment options for whatever it is
or
2 Do his teeth and then test him again in a month to see if hat was the cause (still £££ but not as much). Will need a higher dose of general anaesthetic so associated risks with that.
Or (and I haven't discussed this with the vet!)...we do nothing. He's an old dog, he's fine, as I say - no outward symptoms at all. If we find out what's wrong, treatment options may well be limited by his age anyway.
Would be really interested to know if anyone else has had a similar experience with an old dog and what you did.
PS Don't have pet insurance - he also has a very minor heart murmur which we discovered the one year I forgot to renew it so now I don't think we'd even get cover.