To scan or not to scan your Parkinson patient: that is the question!

The diagnosis of Parkinson’s disease (PD) is primarily a clinical exercise.1 Structural imaging is not recommended in cases with a typical presentation, and should remain reserved for those patients where there is reasonable doubt about the clinically based diagnosis.2 This is not uncommon: even in tertiary specialised centres, up to 25% of patients initially diagnosed with PD are reclassified at follow-up.3 Triggers to reconsider the diagnosis...