Right Sensory Alien Hand Phenomenon from a Left Pontine Hemorrhage

Right Sensory Alien Hand Phenomenon from a Left Pontine Hemorrhage

BACKGROUND Acute onset of a sensory alien hand phenomenon has been observed only from a supratentorial lesion involving the non-dominant hand, mostly from a right posterior cerebral artery infarction. A single acute vascular lesion resulting in a dominant hand sensory alien hand syndrome has not been previously documented. CASE REPORT A 78-year old right-handed woman exhibited right sensory a...

Sensory alien hand syndrome

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Posterior alien hand syndrome after a right thalamic infarct.

The alien hand syndrome, as originally defined, should be reserved for cases in which the hand feels foreign "together with" observable involuntary motor activity. These involuntary movements are unusual during or after acute stroke. Three varieties of alien hand syndrome have been reported, involving lesions of the corpus callosum alone, the corpus callosum plus dominant medial frontal cortex,...

Right-sided anarchic (alien) hand: a longitudinal study.

A patient with a bilateral frontal vascular lesion, encroaching upon the mesial cortex on the left and damage of the corpus callosum showed the 'alien hand' phenomenon on the right. The various hypotheses as to the nature of the lesion for the alien hand phenomenon to appear are discussed. It is proposed that an acute clinical condition, following a lesion of the corpus callosum only, should be...

Alien hand sign or alien hand syndrome?