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Julien Bogousslavsky, MD; Karin Dizerens, MD; Franco Regli, MD; Paul-André Despland, MD

Arch Neurol. 1991;48(6):658-661.

Abstract
• Perioral and distal upper limb sensory dysfunction (cheiro-oral syndrome) has classically been attributed to cortical involvement. In previously reported cases of the syndrome, caused by stroke, however, the thalamus or brain stem has been the actual site of the lesion. We have studied two patients with infarct in the superficial middle cerebral artery territory involving the parietal operculum. Sensory involvement was purely subjective in the face, but severe hypoesthesia was present in the distal upper limb, involving mainly position sense, stereognosis, and graphesthesia. Temperature and pain sensation were involved in one patient. These findings correlated with involvement of the lower part of the postcentral gyrus, more caudal parts of the parietal operculum, and underlying white matter. This opercular cheiro-oral syndrome seems more uncommon than faciobrachiocrural hemihypesthesia associated with anterior parietal artery territory infarct. A double supply to the parietal opercular region through branches of the temporal arteries and anterior parietal artery may explain the rarity of cheiro-oral syndrome resulting from hemisphere stroke, because simultaneous and partial compromise to two different pial artery networks is uncommon.

Author Affiliations
From the Department of Neurology, Centre Hospitalier Universitaire Vaudois, 1011 Lausanne, Switzerland.

Footnotes
Accepted for publication September 25, 1990.

Reprint requests to Department of Neurology, Centre Hospitalier Universitaire Vaudois, 1011 Lausanne, Switzerland (Dr Bogousslavsky).

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