The aphasia syndrome of stroke in the left anterior cerebral artery territory.

Two patients with transcortical motor aphasia are described. Both had infarcts in the distribution of the left anterior cerebral artery confirmed by computerized tomography (CT). The distinctive language abnormality, unusual EEG pattern, and nuclide and CT scan abnormalities all allow ready diagnosis of the syndrome of infarction in this distribution. The mechanism of the language disturbance is reviewed and implications for treatment and prognosis are discussed.