I just read your original post and you said that he came from a breeder and was returned. Sounds like he was returned because he had liver shunt and then sold to you. What is the name of the breeder that you purchased him from and were are they located? A reputable breeder would have had this little guy vet checked when he was returned and would not have sold a pup with LS as a "forest gump" left in a car dog. Were did you find this breeder? If he was let in a car and vet checked with the symptoms that he is having they would have checked him for LS~I would think.
If I were you I would be on the phone immediately with whoever sold you this pup to let them know about the LS and the cost of the surgery.
__________________ “Never argue with a fool, onlookers may not be able to tell the difference.”  Mark Twain |