title: Speech disturbances due to left precentral cortical lesions.
abstract: We encountered two patients with lesions predominantly localized to the left precentral cortex who presented with speech disorders. Patient 1 had a lesion localized to the anterior part of the left precentral cortex along the precentral sulcus, in the middle part of the convexity. Patient 1 predominantly exhibited disturbance of prosody. Patient 2 had a lesion localized to the left precentral cortex, located slightly more posterior and more inferior in the convexity. Patient 2 predominantly exhibited disturbance of articulation, with distortion of sounds without apparent inconsistency. Even lesions localized to the left precentral cortex present with various types of speech disturbance.
authors.affiliation: a Division of Neurology, Department of Medicine , Tokyo Metropolitan Ohtsuka Hospital , Toshima-ku , Japan.
authors.forename: Naoki
authors.initials: N
authors.lastname: Kasahata
mesh_terms: D000368:Aged; D007839:Functional Laterality; D006801:Humans; D008297:Male; D008875:Middle Aged; D009044:Motor Cortex / Q000473:pathology*; D013064:Speech Disorders / Q000175:diagnosis* / Q000473:pathology