Bilateral aplasia of the nose: a case report.

After presenting a case of bilateral agenesis of the nose, and description of normal morphogenesis of the face, an explanation for the malformation is sought. The comparison of non-existent, rudimentarily preformed and existing elements with normal facial morphogenesis leads to the assumption of an incomplete formation of the frontal process, which has led to a hypoplasia of the secondary processes (nasal processes). The reason is advanced for abandoning the construction of a functioning nose and the reconstruction of the external nose is described.