Kernrechtsfrage
Whether the disability pension could be revised and revoked under Art. 17 ATSG due to a relevant change in the insured person's condition.
Extrahierter Entscheid
Yes. The court held that a legally relevant change occurred because depressive symptoms had improved so that work capacity was no longer substantially limited.
Extrahierte Begründung
Revision requires any material change in the relevant factual basis. The psychiatric improvement was enough to trigger reassessment of the whole entitlement; a mere different assessment of unchanged facts was not the case here.