Re: Pathology report
Sorry for your diagnosis. I had the same thing---same type, and vascular invasion---mine actually spread to the muscle in front of it.
Now In many hospitals, if there was no capsular invasion, with pappillary, they won't even consider it cancer any more. But since yours invaded they will probably recommend RAI. RAI can kill off cells anywhere, and since yours likely just spread in the neck, as mine did, you have an excellent change of being cured.
I had this over 8 years ago, had a large dose of RAI, and am thankfully fine ever since. You will do well, just take it one step at a time.