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Related Experiment Videos

Posterior alien hand syndrome: case report.

S Rohde1, S Weidauer, H Lanfermann

  • 1Institute of Neuroradiology, Johann Wolfgang Goethe University, Schleusenweg 2-16, 60528 Frankfurt am Main, Germany. Stefan.Rohde@kgu.de

Neuroradiology
|November 13, 2002
PubMed
Summary
This summary is machine-generated.

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Alien hand syndrome (AHS) involves involuntary limb movements and estrangement. This case highlights posterior AHS in an 80-year-old woman, presenting with dominant right hand symptoms and cerebral atrophy.

Area of Science:

  • Neurology
  • Neuroscience
  • Clinical Neurology

Background:

  • Alien hand syndrome (AHS) is characterized by involuntary limb movements and a feeling of estrangement from the limb.
  • Initially associated with anterior corpus callosum lesions, AHS is also observed with posterior cerebral lesions.

Observation:

  • A case of posterior AHS affecting the dominant right hand in an 80-year-old woman is presented.
  • The patient exhibited nonpurposive behaviors with the affected hand.
  • MRI revealed atrophy in the pre- and postcentral gyri without corpus callosum involvement.

Findings:

  • The patient's presentation aligns with posterior AHS, distinct from anterior forms.
  • Cerebral atrophy, specifically in the pre- and postcentral gyri, was identified as a potential cause.

Related Experiment Videos

  • The findings emphasize that posterior AHS can occur without corpus callosum lesions.

    • Implications:

    • This case expands the understanding of AHS etiology and localization.
    • It highlights the importance of considering posterior cerebral lesions in diagnosing AHS.
    • Further research into the neuroanatomical basis of posterior AHS is warranted.