title: Pure dysarthria due to an insular infarction.
abstract: Cortical infarction presenting with pure dysarthria is rarely reported. Previous studies have reported pure dysarthria due to cortical stroke at the precentral gyrus or middle frontal gyrus. We report a 72-year-old man who developed pure dysarthria caused by an acute cortical infarction in the insular cortex. The role of the insula in language has been difficult to assess clinically because of the rarity of pure insular strokes. Our patient showed pure dysarthria without aphasia, indicating that pure dysarthria can be the sole manifestation of insular infarctions.
authors.affiliation: Department of Neurology, Chiba Rosai Hospital, 2-16 Tatsumidai-Higashi, Ichihara-shi, Chiba 290-0003, Japan. hiragaa@yahoo.co.jp
authors.forename: Akiyuki
authors.initials: A
authors.lastname: Hiraga
authors.forename: Saiko
authors.initials: S
authors.lastname: Tanaka
authors.forename: Ikuo
authors.initials: I
authors.lastname: Kamitsukasa
mesh_terms: D000368:Aged; D020520:Brain Infarction / Q000150:complications*; D002540:Cerebral Cortex / Q000473:pathology*; D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods; D004401:Dysarthria / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D008297:Male