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8. Diagnosis

Doctors diagnose supranuclear palsy based on clinical evaluation and patient history. Some doctors misdiagnose supranuclear palsy as Parkinson's disease because the initial symptoms are very similar. One of the key differences is that people with PSP generally lean or fall backward, while people with Parkinson's disease lean or fall forward. PSP also impairs swallowing and affects the eyes to a much greater extent than does Parkinson's disease. A diagnosis of PSP becomes more obvious as the disease progresses.

diagnosis, clinical evaluation, symptoms, disorders gradyreese / Getty Images

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