I just got a final email from our vet. The oncologist/surgeon cannot tell whether Einstein would be a good candidate for surgery from his ultrasound alone, so he would need a CT scan first ($2k), and the surgery itself would be $6k-$9k, and that. That is simply funds we do not have.

people think we paid a lot of money for Einstein, but nah. he was born beneath our house to a very sick FiV-positive stray who died soon after. by the time we got to the kittens, only Einstein and one sister had survived, and they had severe respiratory infections and both tested positive for FiV.