Mike,

First, Welcome to OCF, glad you found us, sorry you had to!

The more information you have the better...but it can be pretty scary stuff if you don't get the "whole" picture.

There are several conditions that could be going on in your wife's mouth causing a lesion or discoloration...it doesn't have to be cancer which is why we say it's NOT cancer until a biopsy says it is.

The lesion could be Lichen Plantus or Candida, leukoplakia etc...which is why it should be checked and biopsied. I agree that the Dentist was awesome, shake his hand for me next time you see him. Ease your mind, wait for the biopsy results and just enjoy life. Even if it is cancer...there are so many survivors on these forums that are living examples that this disease isn't an automatic death sentence. In fact if caught early the odds of survival are fantastic.

Keep your chin up,

Eric