title: [Stenosis of the pacchioniah oval opening or "incisural block"].
mesh_terms: D001099:Arachnoid; D006801:Humans; D006849:Hydrocephalus / Q000134:cerebrospinal fluid / Q000175:diagnosis / Q000209:etiology*
vernacular_title: La sténose de l'ouverture ovale de Pacchioni ou "bloc incisural"