Questione giuridica chiave
Whether the appeal was admissible without a formal decision or opposition decision by the insurer.
Decisione estratta
The court held that the appeal was premature because no decision under Art. 49 LPGA and no opposition decision under Art. 52 LPGA existed.
Motivazione estratta
A cantonal social insurance appeal under Art. 56 LPGA presupposes an appealable decision; absent such an act, the court lacks a reviewable object.