I usually dispose of Myxie bunnies immediately and dont bring them home.
Craig you asked about Tapeworm, you usually find a cyste like sack and inside there are white eggs. They are in my own experiance usually attatched to the muscle just under the skin, but I've seen images of them inside the gut cavity.
This was my 2nd bunny in two months with them.
Quite revolting to look at, but the pictures are educational, so others who come across them know what they are.
Tony