For those of you following Luke's recent issues and tests; we got good news last night. The mass on his liver is benign. It is large, 4 cm x 6 cm but not cancerous. This has ruled out the liver as the cause of his recent episodes. The last episode was Tuesday night when I took him to the emergency and he has been left with lingering effects from it. It is most definitely a cause for concern; having seizure like symptoms for over 8 hours is very hard on him.
Luke is epileptic and it can change as a dog ages; I hope that it does not continue to get worse. I will be researching options as far as treatments for this. For now he is catching up on some much needed rest.