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Brain SPECT imaging in progressive aphasia.

H Lee1, J H Kramer

  • 1Department of Nuclear Medicine, University of California, San Francisco.

Clinical Nuclear Medicine
|October 1, 1992
PubMed
Summary

Progressive aphasia without dementia is a rare neurobehavioral syndrome that can be difficult to diagnose. Brain SPECT imaging proved useful in identifying a left temporal lobe abnormality in a patient with this condition.

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Area of Science:

  • Neurobehavioral Syndromes
  • Diagnostic Imaging
  • Neurology

Background:

  • Progressive aphasia without dementia is an uncommon neurobehavioral syndrome.
  • Initial presentations can be diagnostically challenging, especially when cognitive impairment is absent.
  • Standard neuro-imaging (MRI, CT) may not reveal early abnormalities.

Observation:

  • A case of progressive aphasia without dementia is presented.
  • Initial MRI and CT scans were inconclusive for diagnosis.
  • Brain single-photon emission computed tomography (SPECT) imaging using Tc-99m HMPAO identified a left temporal lobe abnormality.

Findings:

  • Brain SPECT imaging with Tc-99m HMPAO effectively localized a left temporal lobe abnormality.
  • This finding was not evident on initial MRI or CT scans.
  • SPECT imaging provided crucial diagnostic information in a challenging case.

Implications:

  • Brain SPECT imaging may be a valuable tool in evaluating patients with suspected neurobehavioral disorders.
  • This technique can aid in diagnosing conditions like progressive aphasia when other methods fail.
  • Early and accurate diagnosis through advanced imaging can guide appropriate patient management.

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