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Transient Crossed Aphasia: a Case Study with SPECT.

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A right parietal hemorrhage caused crossed anomic aphasia and left arm neglect in a patient. Functional imaging (SPECT) did not show crossed diaschisis, highlighting the need for combined imaging in acute brain injury assessment.

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Area of Science:

  • Neuroscience
  • Neurology
  • Clinical Neuroimaging

Background:

  • Right parietal lobe lesions can cause complex neurological deficits.
  • Crossed aphasia and neglect are rare but significant clinical presentations.
  • Understanding acute brain injury mechanisms requires integrated imaging approaches.

Purpose of the Study:

  • To report a case of crossed anomic aphasia and neglect following a right parietal hemorrhage.
  • To investigate the presence of crossed diaschisis using SPECT imaging.
  • To emphasize the importance of acute-stage evaluation and multimodal imaging in brain-behavior studies.

Main Methods:

  • Clinical case presentation of a 45-year-old male with acute right parietal hemorrhage.
  • Neurological examination focusing on aphasia, neglect, and limb apraxia.
  • Single-photon emission computed tomography (SPECT) for functional brain imaging.

Main Results:

  • The patient presented with crossed anomic aphasia and left arm neglect/inaccurate reaching.
  • Aphasia resolved within days.
  • SPECT imaging did not reveal evidence of crossed left hemispheric diaschisis.

Conclusions:

  • Right parietal hemorrhage can manifest with crossed aphasia and neglect.
  • Crossed diaschisis may not be evident on SPECT in such acute presentations.
  • Integrating static and functional imaging is crucial for understanding acute brain-behavior relationships.