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Opercular cheiro-oral syndrome.

J Bogousslavsky1, K Dizerens, F Regli

  • 1Department of Neurology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland.

Archives of Neurology
|June 1, 1991
PubMed
Summary
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Cheiro-oral syndrome, affecting the face and hand, is often linked to cortical strokes. This study identifies parietal operculum infarcts as a cause, revealing specific sensory deficits in the hand.

Area of Science:

  • Neurology
  • Neuroscience
  • Stroke Research

Background:

  • Perioral and distal upper limb sensory dysfunction (cheiro-oral syndrome) is typically attributed to cortical lesions.
  • Previous stroke-related cases have implicated the thalamus or brain stem as the lesion site.

Observation:

  • Two patients with infarcts in the superficial middle cerebral artery territory affecting the parietal operculum were studied.
  • Patients presented with subjective facial sensory changes and severe distal upper limb sensory loss, particularly affecting proprioception, stereognosis, and graphesthesia.

Findings:

  • Sensory deficits correlated with lesions in the inferior postcentral gyrus, caudal parietal operculum, and adjacent white matter.
  • This specific presentation of opercular cheiro-oral syndrome appears rarer than faciobrachiocrural hemihypesthesia from anterior parietal artery infarcts.

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Implications:

  • The dual vascular supply to the parietal operculum may explain the rarity of this syndrome in hemispheric stroke.
  • Understanding these specific stroke patterns refines the neuroanatomical basis of sensory deficits.