Aplasia of the first and second branchial arches

This is the authors' abstract. We don't add key points for this paper.

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.