[Interhemispheric disconnection syndrome caused by partial infarction of the corpus callosum: neuropsychological study and MRI].
A partial syndrome of hemisphere disconnection was observed in a 63 year-old woman, following an anterior and middle corpus callosum infarct on MRI. Notably, we found left ideomotor apraxia, diagonistic apraxia, left-year extinction on dichotic listening, but no left-hand anomia nor left visual field anomia. A left tactile extinction in dichaptic condition is interpreted as resultant of a dysregulation of the attentional balance between the two hemispheres. This detailed neuropsychological study permits a correlation between the callosal syndrome and the lesion. We suggest that an occlusion of the anterior callosal artery could explain this limited ischemia.
Servan
J
J
Service de Neurologie, Centre Hospitalier René Dubos, Pontoise.
Verstichel
P
P
Elghozi
D
D
Duclos
H
H
D002544:Cerebral Infarction / Q000150:complications* / Q000175:diagnosis / Q000523:psychology; D003337:Corpus Callosum / Q000098:blood supply* / Q000473:pathology; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009422:Nervous System Diseases; D009483:Neuropsychological Tests; D013577:Syndrome
Syndrome de déconnexion interhémisphérique par infarctus partiel du corps calleux: étude neuropsychologique et IRM.