title: Hypoplastic or absent mandibular frenulum: a new predictive sign of infantile hypertrophic pyloric stenosis.
abstract: Among 25 patients with hypertrophic pyloric stenosis, a hypoplastic or absent mandibular frenulum was noted in 92%, compared with 1.6% of 319 control infants (P <.001). This previously unrecognized sign may prove helpful in identifying newborns at risk of developing the disorder.
authors.affiliation: Neonatal Intensive Care Unit, Institute of Preventive Pediatrics and Neonatology, University of Siena, Italy.
authors.forename: C
authors.initials: C
authors.lastname: De Felice
authors.forename: G
authors.initials: G
authors.lastname: Di Maggio
authors.forename: L
authors.initials: L
authors.lastname: Zagordo
authors.forename: S
authors.initials: S
authors.lastname: Parrini
authors.forename: P
authors.initials: P
authors.lastname: Toti
authors.forename: G
authors.initials: G
authors.lastname: Tota
authors.forename: F
authors.initials: F
authors.lastname: Bagnoli
mesh_terms: D005260:Female; D006801:Humans; D006984:Hypertrophy; D007231:Infant, Newborn; D007742:Labial Frenum / Q000002:abnormalities*; D008297:Male; D011707:Pyloric Stenosis / Q000150:complications* / Q000473:pathology