Types of aphasia | Number of cases (%) | Site of each lesion |
---|---|---|
Global aphasia | 18 (50%) | 12 cases total left MCA infarction 1 case total right MCA infarction 2 cases left frontal infarctions, involves the cortex and the subcortical WM, (MCA territory) 2 cases left parietal infarction, involves the cortex and the subcortical WM, (MCA territory) 1 case left parietal-occipital infarction |
Broca’s (motor aphasia) | 10 (27.8%) | 3 cases left frontal operculum and the anterior insula 1 case right frontoparietal operculum and the insula (MCA territory) 3 cases left frontoparietal infarction, involves the cortex and the subcortical WM, with extension to the premotor, motor, and sensory areas at the lateral surface (MCA territory) 3 case left basal ganglionic infarction (putamen and lenticulocapsular region—MCA territory, lateral lenticulostriate). |
Wernicke’s (sensory aphasia) | 4 (11.1%) | 2 cases left temporoparietal infarction, involves the cortex and the subcortical WM, (MCA territory) 1 case left temporal infarction, involves the cortex and the subcortical WM, (MCA territory). 1 case left basal ganglionic infarction, lentiform nucleus (MCA territory, lateral lenticulostriate) |
Conductive aphasia | 3 (8.3%) | 3 cases diffuse small vessels ischemia (periventricular and deep WM) |
Nominal aphasia | 1 (2.8%) | Left angular gyrus infarction (MCA territory) |