Would not risk it.

You could eat it still, but probably dont want to. The heart I pickle, so I would scour it well and use it, but the liver probably would pick up some bowel taste. There actually is nothing in the gut that would make you sick except from your (and our) delicate palate and sensibilities. Deer being a vegetarian, even bowel matter would wash off and not be a big concern. (Never eaten a cow pie? HAH! funnyme.)