Hypoplastic or absent mandibular frenulum: a new predictive sign of infantile hypertrophic pyloric stenosis.

De Felice, C; Di Maggio, G; Zagordo, L; Parrini, S; Toti, P; Tota, G; Bagnoli, F · J Pediatr · 2000

case_control · Level III

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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.

Medical subject headings