title: Aplasia of the first and second branchial arches.
abstract: This case report of an otocephalic monster gave the opportunity to study severe orofacial anomalies with a view to clarifying the present position in regard to the so-called first and second arch syndrome. Finding the causal mechanism of this syndrome will eventually lead to prevention and, it is hoped, eradication of this syndrome.
mesh_terms: D000015:Abnormalities, Multiple; D001934:Branchial Region; D004423:Ear / Q000002:abnormalities; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007569:Jaw Abnormalities / Q000150:complications; D008865:Microstomia / Q000150:complications; D013577:Syndrome; D014059:Tongue / Q000002:abnormalities