Transcortical mixed aphasia with left frontoparietal lesions.
We present a case of transcortical mixed aphasia following a left frontoparietal infarct caused by vasospasm after subarachnoid haemorrhage. Although CT showed low-density areas in the left frontal lobe and basal ganglia, single photon emission CT revealed a wider area of low perfusion over the entire left hemisphere, except for the left perisylvian speech areas. Hence, transcortical mixed aphasia may be caused by the isolation of perisylvian speech areas due to disconnection from surrounding areas.
Maeshima
S
S
Department of Neurological Surgery, Wakayama Medical College, Japan.
Uematsu
Y
Y
Terada
T
T
Nakai
K
K
Itakura
T
T
Komai
N
N
D001037:Aphasia / Q000209:etiology*; D001479:Basal Ganglia / Q000000981:diagnostic imaging*; D002544:Cerebral Infarction / Q000150:complications*; D002560:Cerebrovascular Circulation; D005260:Female; D005625:Frontal Lobe / Q000000981:diagnostic imaging*; D006801:Humans; D002546:Ischemic Attack, Transient / Q000150:complications; D008875:Middle Aged; D013345:Subarachnoid Hemorrhage / Q000150:complications; D015899:Tomography, Emission-Computed, Single-Photon; D014057:Tomography, X-Ray Computed