ABSTRACT: Biopercular syndrome is a labio-facio-pharyngeal-laryngeal-gloso-masticatory diplegia, with automatic dissociation of movements. Ischemia is the most common etiology when it occurs bilaterally in the opercular area, but it has been also described in patients with bilateral subcortical lesions. There arefew cases described with unilateral lesions. We report a 76-year-old woman who developed a biopercular syndrome caused by unilateral ischemic lesion ofthe right middle cerebral artery confirmed by magnetic resonance imaging and cerebral SPECT.COL0010744