Don't give up! Pups with protein losing enteropathies can be treated and some do well. I have one with lymphangectasia (loss through intestines) and one with protein losing nephropathy (loss through kidneys). Here are a couple of threads about each of them. Perhaps they will give you some hope.
http://www.yorkietalk.com/forums/sic...ia-update.html http://www.yorkietalk.com/forums/sic...phropathy.html
I will keep Columbo in my thoughts and prayers. Keep us posted please!