What is the role of imaging studies in the diagnosis of tardive dyskinesia (TD)?

Updated: Oct 17, 2018
  • Author: James Robert Brasic, MD, MPH; Chief Editor: Selim R Benbadis, MD  more...
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Findings from brain CT and MRI are typically normal in patients with TD. Nevertheless, these imaging studies may assist in the differential diagnosis. In Huntington disease, atrophy of the caudate nucleus is commonly seen on CT and MRI of the brain. In Fahr syndrome, calcification is often seen in the brain, particularly in the basal ganglia. Imaging results can also exclude neoplasm and cerebral infarction.

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