Kernrechtsfrage
Whether the conditions for revision of the AI pension under Art. 17 LPGA were met
Extrahierter Entscheid
No notable change in health existed between the 1998 decision and the 2008 suppression decision; however, this did not prevent suppression because the prior 1998 decision could be reconsidered.
Extrahierte Begründung
The medical file did not show a relevant deterioration or improvement in the period at issue. The alleged impact of porphyria was not established as work-relevant, and the cantonal court could deny the need for a new expert opinion.