I took my 9 year old Dogue de Bordeaux to the Vet today because he had been limping for a couple of weeks. My dogs yearly seem to develop a limp from charging around the house and yard but recover after a week or two. An X ray showed that he has bone cancer in his leg that has almost certainly traveled from elsewhere and treatment would be futile. Worse than that he has a racing heart beat with a low pulse rate which indicates an enlarged heart working overtime. The Vet says that the heart condition will likely end his life in a matter of weeks. Whether or not the heart problem stems from cancer elsewhere is a moot point. He just was at the Vet to get an examination and shots a couple of months ago and there was no hint of this. I am crushed by this.