What is pyriform aperture stenosis?
Also known as: PAS, congenital nasal pyriform aperture stenosis.
Pyriform aperture stenosis is a birth defect that affects the face and nose. The common presentation is a narrow nasal opening due to the upper jaw bone being larger than normal.
Reviewed by: Yamilet Tirado, MD
This page was last updated on: 1/29/2019 3:21:13 PM
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