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Stroke, Vol 21, 953-956, Copyright © 1990 by American Heart Association

ARTICLES

Mixed transcortical aphasia without anatomic isolation of the speech area

SZ Rapcsak, LB Krupp, AB Rubens and J Reim
Department of Neurology, University of Arizona, Tucson.

We report two patients with mixed transcortical aphasia following left frontal lobe infarctions. Although there was no evidence of anatomic isolation of the speech area on computed tomograms or magnetic resonance imaging scans, single-photon emission computed tomography in one case demonstrated diminished blood flow over the left parietal convexity suggestive of "functional isolation" of the posterior perisylvian language zone.

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