Congenital malformations in the frontonasal area: their pathogenesis and classification.

Abstract

The observation of 235 patients affected by abnormalities in the frontonasal area, has led the author to reinvestigate this complex chapter of the human congenital malformations. A complete critical review of the literature has been made in order to find the possible correlations between the available cases and those previously reported and to establish a simple morphogenetic classification that may embody them all, even transitional forms.