"The cells sent are consistent with chondrosarcoma."
When I asked the vet how long he had, he said "Anywhere from a month to six months." This kind of cancer only spreads farther in the body 20% of the time, but the tumor does tend to keep growing locally.
Stevie spent the afternoon playing with the Pig, (another dog) playing a game that went like this: Run to the end of the property, bite the snow! Run to the other end of the property. Bite the snow! Repeat!