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Substantia nigra hyperechogenicity in essential tremor and Parkinson's disease: a longitudinal study

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Essential tremor (ET) and Parkinson's disease (PD) sometimes overlap in their clinical expression with ET preceding PD onset, often leading to misdiagnosis. Transcranial sonography (TCS) has been shown to be… Click to show full abstract

Essential tremor (ET) and Parkinson's disease (PD) sometimes overlap in their clinical expression with ET preceding PD onset, often leading to misdiagnosis. Transcranial sonography (TCS) has been shown to be a valid and nonā€invasive diagnostic tool to identify early idiopathic PD and to differentiate it from ET. The purpose of this study was to investigate the relevance of substantia nigra hyperechogenicity in patients with ET.

Keywords: tremor parkinson; substantia nigra; parkinson disease; nigra hyperechogenicity; essential tremor

Journal Title: European Journal of Neurology
Year Published: 2019

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