Do you mean in character name and player-made enchanted items?
In potions for example or when you exit from enchanting or from the alchemist table.
Here some screenshot.
http://cloud.steampowered.com/ugc/596956238283787396/2A0442755F3176ACE060C0DC64787C2F50F3E6AF/
This one shows the right translation (ABILITà), seems that it was read from C:\Program Files (x86)\Steam\steamapps\common\skyrim\Data\Interface\Translate_ITALIAN.txt.
http://cloud.steampowered.com/ugc/596956238283782557/A561D10AD47D0A82F5F66B7F340DE0147144585B/
http://cloud.steampowered.com/ugc/596956238283938929/B4E4917F6E4CB945339ED0E41F44C05BB8BF9604/
these ones shows the lack of à letter (ELETTRICIT, instead of ELETTRICITà) and (S, instead of Sì)