awwww that is SOOOO sadddd!!! I am so sorry for your loss 

 Do they know if the brain tumor was caused by metranitozole? I read up on it and it said it may cause neurological damage in dogs and that really concerns me! I have been adding in ZD to Ky's food which she LOVES and her belly is fine as long as she has a dose of metra. in her! I am just concerned that the metra. will cause long term damage?