Questione giuridica chiave
Whether the pension denial was based on properly assessed medical evidence and the claimant's remaining work capacity.
Decisione estratta
The file-based expert opinion of Dr. U. was not fully probative; the record was insufficient to determine diagnosis, work capacity, and prognosis, so further expert evidence was required.
Motivazione estratta
Dr. U. did not rely on an already established medical state but challenged prior diagnoses and capacity assessments; a personal examination was therefore necessary, and the opinion did not adequately address divergent BTZ and RAD findings.