Update:
Vet came out again. Flexed mildly positive in a few places, but no smoking gun. Ultrasounded suspensories, everything looked fine.
The vet palped that mass above her hock. While she didn’t show discomfort while he was doing it, as he walked away she started stamping it and was obviously a little upset at it.
Did a peroneal block on my request, trying to get at that mass - still showed lameness RH. Not totally sure we got the right location to target that mass though. (side note, it will be a miracle if she didn’t do damage to her extensor, she had no clue where her foot was, poor girl)
Ultimately, we injected stifles and hocks. We will reassess in a month.
Removing that mass is absolutely out of the question. First, it would not be a standing procedure, and she is not a good recovery room candidate. Second, the mass they removed from her girth line in December 2018 is back already, as big as it ever was.
So, if the lameness does not resolve with this newest round of “shot gun” injections, we will hit that mass with the meanest steroids we can to try and reduce its size.
And if that doesn’t work, she is officially retired.