Sequelae of a left-sided parietal stroke: Posterior alien hand syndrome |
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Authors: | Benjamin Kloesel Kathrin Czarnecki Jeffery J Muir A Scott Keller |
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Institution: | 1. Department of Internal Medicine , Mayo Clinic , Rochester, MN, USA kloesel.benjamin@mayo.edu;3. Department of Neurology , Mayo Clinic , Rochester, MN, USA;4. Department of Physical Medicine and Rehabilitation , Mayo Clinic , Rochester, MN, USA;5. Department of Internal Medicine , Mayo Clinic , Rochester, MN, USA |
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Abstract: | Posterior alien hand syndrome is a new addition to a poorly understood group of movement disorders. Historically, anatomical lesions causing uncontrolled limb movement and a feeling of foreignness were found to be located in the corpus callosum or frontal lobe. Recent case reports, however, demonstrate the typical symptoms of alien hand syndrome with lesions located in the parietal/occipital lobes. Disturbance of normal function in these regions tends to produce less complex motor activity, such as hand levitation, along with a sensory component characterized by feeling of estrangement. We discuss a patient who presented with unusual symptoms following an outpatient procedure and was found to have posterior alien hand syndrome. |
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Keywords: | Alien hand syndrome Stroke Movement disorder Posterior lobe Involuntary movement |
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