Aphasia and apraxia caused by ischemic damage to the white substance of the dominant hemisphere.

We describe a case of aphasia associated with ideomotor apraxia due to a CT-proven ischemic lesion strictly confined to the dominant hemisphere white substance at the junctional zone of Donnan. The aphasia did not fit any of the known patterns. At first severe, it cleared in 5 days, while the apraxia remained unchanged 25 days after onset.