Only seeing this now.........Hope Riley heals quickly and is more comfortable.
If you are still concerned follow your instinct and see your vet again for further tests /examination.
Sending our best....
****UPDATE 21 - SEPT - 2009 ******
POST # 1
The results are back it is just a wart
And even better news she went to her new forever home today along with her kennel mate.
So very sorry your heart is broken loosing Roady suddenly..........you gave her a chance, sadly it was her time.
It's never long enough with them.......
Deepest Sympathy