Questione giuridica chiave
Whether the cantonal judgment had to be annulled because it was issued on an incomplete file and without ruling on the respondent's motion for remand.
Decisione estratta
Yes. The first-instance appellate court did not know the respondent's reply and medical opinion, so it decided without all relevant material and without addressing the respondent's request for further medical investigation.
Motivazione estratta
This violated the parties' right to be heard and the judge's duty to take the necessary evidence. The Federal Tribunal could therefore annul the judgment and remit the matter for a new decision on the complete file.