[Sensory syndrome and aphasia after left insular infarct].
BACKGROUND
Sensorial impairment without hemiplegia is usually caused by a thalamic lesion.


METHODS
A 28-year-old woman presented with hemianesthesia associated with aphasia following a left insular lesion, subsequent to subarachnoid hemorrhage. Brain MRI Flair sequence revealed a high intensity signal in the left insular and frontal subcortical regions. Insular infarct was diagnosed, associated with hemorrhagic sequelae.


CONCLUSIONS
Study of the normal and pathologic insular cortex suggest several implications of the region in somatosensory and language functions. However, the insular cortex has been mainly associated with central pain. Lasting objective hypoesthesia has been very rarely documented. The left insular cortex has also been implicated in speech apraxia but our patient presented with fluent aphasia mostly affecting the rhythm of speech, as it has been observed in thalamic aphasia.
Service de médecine et réadaptation, groupe hospitalier Pitié-Salpêtrière, 47-83, boulevard de l'Hôpital, 75651 Paris cedex 13, France. anne.peskine@psl.aphp.fr
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Peskine
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Galland
A Weill
AW
Chounlamountry
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P
Pradat-Diehl
D000328:Adult; D001037:Aphasia / Q000209:etiology* / Q000473:pathology / Q000523:psychology*; D002544:Cerebral Infarction / Q000150:complications* / Q000473:pathology / Q000523:psychology*; D005260:Female; D007839:Functional Laterality / Q000502:physiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D010291:Paresis / Q000209:etiology; D012678:Sensation Disorders / Q000209:etiology* / Q000473:pathology / Q000523:psychology*; D020521:Stroke / Q000209:etiology* / Q000473:pathology / Q000523:psychology*; D013345:Subarachnoid Hemorrhage / Q000150:complications; D013788:Thalamus / Q000473:pathology; D014057:Tomography, X-Ray Computed