[CockalierMom]

I have experience with Cushings that was diagnosed at the age of 12 in one of my cocker spaniels. There are a series of tests that must be done to diagnose Cushings not just an ultrasound. Panting, ravenous appetite, weight gain, high liver enzymes and enlarged liver are ALL symptoms of Cushings. You may want to consider getting a second opinion from another vet.