"Semantic" conduction aphasia from a posterior insular cortex infarction.
A unique infarction limited to the posterior insula and intrasylvian parietal opercular cortex produced a subtype of conduction aphasia, characterized by a predominance of semantic paraphasias. Temporal lobe hypoperfusion seen on hexamethylpropyleneamineoxime single-photon emission computed tomography in the absence of any signs of ischemia suggested that cortical diaschisis played a role in the emergence of this syndrome.
Marshall
R S
RS
Department of Neurology, Columbia-Presbyterian Medical Center, New York, NY 10032, USA.
Lazar
R M
RM
Mohr
J P
JP
Van Heertum
R L
RL
Mast
H
H
D018886:Aphasia, Conduction / Q000000981:diagnostic imaging / Q000209:etiology*; D002540:Cerebral Cortex / Q000473:pathology*; D002544:Cerebral Infarction / Q000150:complications* / Q000000981:diagnostic imaging; D002560:Cerebrovascular Circulation; D005260:Female; D006801:Humans; D008875:Middle Aged; D015609:Organotechnetium Compounds; D010091:Oximes; D010296:Parietal Lobe / Q000473:pathology; D019690:Technetium Tc 99m Exametazime; D013702:Temporal Lobe / Q000098:blood supply / Q000000981:diagnostic imaging / Q000473:pathology; D015899:Tomography, Emission-Computed, Single-Photon
D015609:Organotechnetium Compounds; D010091:Oximes; D019690:Technetium Tc 99m Exametazime