Les épilepsies pariétales : cadres nosologiques et sémiologie

Parietal epilepsy is a poorly understood entity. It is generally considered as rare (about 5% of cases in surgical series), despite the volume of the parietal lobe (one-quarter of the cerebral cortex). The anatomy of the parietal lobe is characterized by numerous functional areas and major connectivity, particularly with the frontal lobe. The parietal lobe harbors several different functions, including visuomotor control, selective attention and consciousness, sensorial perception and body representation, and the vestibular system. Subjective signs are more common (80% of cases) and specific. Somatosensorial disorders, body representation disorders, and vestibular symptoms predominate. The objective semiology of parietal seizures is often misleading, often characterized by motor signs related to propagation.