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Congenital Abnormalities

Interactive App

Choanal atresia » Nose Q30.0

Definition:

Congenital obstruction (membraneous or osseous) of the anterior and/or posterior choanae. Excludes choanal stenosis and congestion of nasal mucosa.

Notes:

It represents a neonatal emergency if bilateral. It may go unnoticed if unilateral. Excludes choanal stenosis and congestion of the nasal mucosa. See Directed Semiology: Nasal catheter.

Image:

Anterior and posterior choanal atresia.

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