Congenital nasal piriform aperture stenosis or bony inlet stenosis: a report of three cases.
BACKGROUND
Congenital nasal piriform aperture stenosis is an uncommon disorder causing nasal obstruction in neonates. Findings on computed tomography (CT) greatly facilitate the diagnosis.


METHODS
Three cases of congenital nasal piriform aperture stenosis are reported, with an emphasis on CT findings.


CONCLUSIONS
At birth, a diameter of the piriform aperture at the level of the inferior nasal meatus of > or =5 mm on CT may indicate a good chance of success using conservative treatment.
Department of Radiology, University Hospitals Leuven, Leuven, Belgium.
Peter
P
De Mot
Robert
R
Hermans
Mark
M
Jorissen
Vincent
V
Vander Poorten
D003251:Constriction, Pathologic; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D009295:Nasal Bone / Q000002:abnormalities* / Q000000981:diagnostic imaging; D009296:Nasal Cavity / Q000002:abnormalities*; D015508:Nasal Obstruction / Q000151:congenital / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed