Questione giuridica chiave
Whether the factual circumstances had changed in a revision-relevant way since the final 2004 pension denial.
Decisione estratta
No revision-relevant change was shown; the pension refusal remained justified.
Motivazione estratta
The insured had not worked during the whole comparison period, so only a relevant health change could justify revision. The cantonal court could rely on the psychiatric expertise and no additional medical evidence was needed.