Dude there is no expanded version of Scandinavia. It's a mistake with NORDIC countries. 

The top of this article is WRONG and UNSOURCED. Scandinavia is not named after Scandinavian peninsula. Finish is not Scandinavian language -but Slavic. 
If Finland should be included, so should the Baltic countries.

This is pretty logical. What else should be the difference with Nordic countries and Scandinavia. Comanche cph