Is this 'anomaly' on my Uno R3 board a cause for concern?

Thanks for the quick response!

Yes, my first instinct was to just remove it, but then I thought, "Well, if it is a problem (and especially if it could have damaged the board) I'd better document it and get some feedback first."

Oh well. I guess it's off to other sections of the forum for more schoolin'. =(

Thanks.