30th April 2024

A 38-year-old man is seen with his partner. He reports increasing irritability and anxiety

A 38-year-old man is seen with his partner. He reports increasing irritability and anxiety which has increased in the last 1-2 years. He also reports a unilateral tremor. On examination, he is found to have rigidity and dystonia, more pronounced in his right upper limb. Which is the single most appropriate investigation in the first instance?

Select the SINGLE most appropriate option from the list below. Select ONE option only.