Yes more than anything you want to know for certain, this emotional turmoil can do a number on your wife's emotional state and mental health - with very much effects physical health, plus ambivalence and uncertainty tells me there is definite hope. saying well we're sure there is cancer in there even though we didn't find it tells me they are playing with crystal balls and basing their dx on experience rather than definitive fact - that's a slippery slope in that she may have something going on that's unrelated, or something that is clearly treatable. Hugs and hoping to hear positive news soon.