Interesting diagnosis.
It isn't common in dogs but can happen obviously.
Her u/s results did make me wonder about it.
You may want to test triglycerides anyway. I know Ellie's internist thought it would be good idea too test hers and see if they were high despite being on a low fat diet.
That is actually a scary thought now that you bring it up. The NV is low fat at 18-19% but that is the minimum. So how do we "know" it isn't higher? The same goes for other companies as well. And what about the people who need low protein for their dogs...just because it is a 20% min. or whatever doesn't really mean much.
The low b12 could also mean PLE I think...hopefully not the case here though.
Did the vet give you a % of fat that you need to stay under?
Petzlife...I just don't know about the stuff. It is full of alcohol and whether it causes damage or not, I don't see no reason to take the chance.