Kernrechtsfrage
Whether the conditions for revising the invalidity pension under Art. 17 ATSG were met
Extrahierter Entscheid
The prerequisites for revision were not met because the medical and economic situation had remained essentially unchanged.
Extrahierte Begründung
The lower court's comprehensive assessment, based especially on the interdisciplinary expert report, was not manifestly incorrect; thus the finding of no relevant change had to stand.