Our 15 year old Albino Cal King has 2 lumps about 1/3 of the way down his body from his/her head. We took Casper to the vet when he/she had just 1 lump and she said it was a calcium deposit but within 2 weeks there was another lump.Casper still eats and sheds on a regular basis but we're not sure if the lumps are really a build up or if it's something else. The vet did take xrays and did'nt see anything. Any thoughts?.