I know the news sucks but it is far better to catch it now than than later - hopefully they will do the neck dissection ASAP.
tell your wife not to worry. It's a one foot in front of the other prospect. Time is of the essence here, you want it out, so push... Politely - for them to get you in as soon as possible. And scans normally only take 24 hrs for results. Don't be waiting a week to get the results.
hugs and much luck to you.