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what are the causes of congenital nasopharyngeal stenosis and atresia, and what are the causes of congenital nasopharyngeal stenosis and atresia

what are the causes of congenital nasopharyngeal stenosis and atresia, and what are the causes of congenital nasopharyngeal stenosis and atresia

The main cause of congenital nasopharyngeal stenosis and atresia is that buccopharyngeal membrane is not absorbed and ruptured.

I. Etiology:

Speculation may be related to the following points:

1. The buccopharyngeal membrane is not ruptured.

2. Thick nostrils appear during embryonic development and are later blocked by epithelial embolism, which transforms into membranous or bony septum.

3. The tissue around the posterior nostril is hyperplastic and atresia, and the hyperplastic part comes from jawbone, inner pterygoid plate, etc.

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