title: [Neonatal pathologies of the lacrimal system].
abstract: Neonatal obstruction of the distal part of the lachrymal system can lead to dilatation of the lachrymal sac if associated with a canaliculus problem. Clinical presentation is a blue tumor of the internal canthus. This external expansion of the lachrymal sac communicates with a nasal expansion under the inferior nasal turbinate. Even if this typical presentation is spectacular, spontaneous resolution occurs in 80% of cases. There are two main types of progression: an abscess of the lachrymal sac can occur (20%) or bilateral nasal respiratory obstruction in cases of bilateral obstacle because newborns are obligatory nose breathers (<0.1%).
authors.affiliation: Service d'ophtalmologie, Hôtel-Dieu, Paris, France. brunofayet@club-internet.fr
authors.forename: B
authors.initials: B
authors.lastname: Fayet
authors.forename: E
authors.initials: E
authors.lastname: Racy
authors.forename: J-B
authors.initials: JB
authors.lastname: Charrier
mesh_terms: D006801:Humans; D007231:Infant, Newborn; D007767:Lacrimal Duct Obstruction / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy