title: Complete mandibular agenesis. Report of a case.
abstract: A child had complete mandibular agenesis, with associated anomalies of microstomia, left choanal stenosis, and a cleft soft palate. This child had evidence of disruption in development at about the four-week stage by the persistence of several developmental remnants, specifically, the buccopharyngeal membrane, tongue remnants, and the laryngotracheal groove. The etiology of this condition is unclear at this time.
mesh_terms: D000015:Abnormalities, Multiple / Q000196:embryology*; D001934:Branchial Region; D002675:Child, Preschool; D005145:Face / Q000196:embryology; D006801:Humans; D007830:Larynx / Q000002:abnormalities; D008297:Male; D008334:Mandible / Q000002:abnormalities*; D008865:Microstomia / Q000196:embryology; D009960:Oropharynx / Q000002:abnormalities; D014059:Tongue / Q000002:abnormalities; D014132:Trachea / Q000002:abnormalities