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April 1991

Right Parietal Stroke With Gerstmann's Syndrome: Appearance on Computed Tomography, Magnetic Resonance Imaging, and Single-Photon Emission Computed Tomography

Arch Neurol. 1991;48(4):432-435. doi:10.1001/archneur.1991.00530160102023

• We examined a patient who exhibited Gerstmann's syndrome (left-right disorientation, finger agnosia, dyscalculia, and dysgraphia) in association with a perioperative stroke in the right parietal lobe. This is the first description of the Gerstmann tetrad occurring in the setting of discrete right hemisphere pathologic findings. A well-localized vascular lesion was demonstrated by computed tomography, magnetic resonance imaging, and single-photon emission computed tomographic studies. The patient had clinical evidence of reversed functional cerebral dominance and radiologic evidence of reversed anatomic cerebral asymmetries.