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Congenital Nasal Pyriform Aperture Stenosis
Bernadette L. Koch, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            • Diagnostic Checklist

              TERMINOLOGY

              • Abbreviations

                • Congenital nasal pyriform aperture stenosis (CNPAS)
              • Definitions

                • Congenital narrowing of anterior bony nasal passageway/nasal aperture

              IMAGING

              • General Features

                • Imaging Recommendations

                  • CT Findings

                    DIFFERENTIAL DIAGNOSIS

                      PATHOLOGY

                      • General Features

                        CLINICAL ISSUES

                        • Presentation

                          • Demographics

                            • Natural History & Prognosis

                              • Treatment

                                DIAGNOSTIC CHECKLIST

                                • Consider

                                  • Image Interpretation Pearls

                                    Selected References

                                    1. Ruda J et al: Radiologic, genetic, and endocrine findings in isolated congenital nasal pyriform aperture stenosis patients. Int J Pediatr Otorhinolaryngol. 128:109705, 2020
                                    2. Shah GB et al: Congenital nasal pyriform aperture stenosis: analysis of twenty cases at a single institution. Int J Pediatr Otorhinolaryngol. 126:109608, 2019
                                    3. Ginat DT et al: CT and MRI of congenital nasal lesions in syndromic conditions. Pediatr Radiol.45(7):1056-65, 2015
                                    4. Wormald R et al: Congenital nasal pyriform aperture stenosis 5.7 mm or less is associated with surgical intervention: a pooled case series. Int J Pediatr Otorhinolaryngol. 79(11):1802-5, 2015
                                    5. Wine TM et al: Congenital nasal pyriform aperture stenosis: is there a role for nasal dilation? JAMA Otolaryngol Head Neck Surg. 140(4):352-6, 2014
                                    6. Tate JR et al: Congenital nasal pyriform aperture stenosis. Otolaryngol Clin North Am. 42(3):521-5, 2009
                                    7. Osovsky M et al: Congenital pyriform aperture stenosis. Pediatr Radiol. 37(1):97-9, 2007
                                    8. Guilmin-Crépon S et al: High proportion of pituitary abnormalities and other congenital defects in children with congenital nasal pyriform aperture stenosis. Pediatr Res. 60(4):478-84, 2006
                                    9. Belden CJ et al: CT features of congenital nasal piriform aperture stenosis: initial experience. Radiology. 213(2):495-501, 1999
                                    10. Bignault A et al: Congenital nasal piriform aperture stenosis. AJNR Am J Neuroradiol. 15(5):877-8, 1994
                                    11. Ey EH et al: Bony inlet stenosis as a cause of nasal airway obstruction. Radiology. 168(2):477-9, 1988
                                    Related Anatomy
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                                    Related Differential Diagnoses
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                                    References
                                    Tables

                                    Tables

                                    KEY FACTS

                                    • Terminology

                                      • Imaging

                                        • Top Differential Diagnoses

                                          • Pathology

                                            • Clinical Issues

                                              • Diagnostic Checklist

                                                TERMINOLOGY

                                                • Abbreviations

                                                  • Congenital nasal pyriform aperture stenosis (CNPAS)
                                                • Definitions

                                                  • Congenital narrowing of anterior bony nasal passageway/nasal aperture

                                                IMAGING

                                                • General Features

                                                  • Imaging Recommendations

                                                    • CT Findings

                                                      DIFFERENTIAL DIAGNOSIS

                                                        PATHOLOGY

                                                        • General Features

                                                          CLINICAL ISSUES

                                                          • Presentation

                                                            • Demographics

                                                              • Natural History & Prognosis

                                                                • Treatment

                                                                  DIAGNOSTIC CHECKLIST

                                                                  • Consider

                                                                    • Image Interpretation Pearls

                                                                      Selected References

                                                                      1. Ruda J et al: Radiologic, genetic, and endocrine findings in isolated congenital nasal pyriform aperture stenosis patients. Int J Pediatr Otorhinolaryngol. 128:109705, 2020
                                                                      2. Shah GB et al: Congenital nasal pyriform aperture stenosis: analysis of twenty cases at a single institution. Int J Pediatr Otorhinolaryngol. 126:109608, 2019
                                                                      3. Ginat DT et al: CT and MRI of congenital nasal lesions in syndromic conditions. Pediatr Radiol.45(7):1056-65, 2015
                                                                      4. Wormald R et al: Congenital nasal pyriform aperture stenosis 5.7 mm or less is associated with surgical intervention: a pooled case series. Int J Pediatr Otorhinolaryngol. 79(11):1802-5, 2015
                                                                      5. Wine TM et al: Congenital nasal pyriform aperture stenosis: is there a role for nasal dilation? JAMA Otolaryngol Head Neck Surg. 140(4):352-6, 2014
                                                                      6. Tate JR et al: Congenital nasal pyriform aperture stenosis. Otolaryngol Clin North Am. 42(3):521-5, 2009
                                                                      7. Osovsky M et al: Congenital pyriform aperture stenosis. Pediatr Radiol. 37(1):97-9, 2007
                                                                      8. Guilmin-Crépon S et al: High proportion of pituitary abnormalities and other congenital defects in children with congenital nasal pyriform aperture stenosis. Pediatr Res. 60(4):478-84, 2006
                                                                      9. Belden CJ et al: CT features of congenital nasal piriform aperture stenosis: initial experience. Radiology. 213(2):495-501, 1999
                                                                      10. Bignault A et al: Congenital nasal piriform aperture stenosis. AJNR Am J Neuroradiol. 15(5):877-8, 1994
                                                                      11. Ey EH et al: Bony inlet stenosis as a cause of nasal airway obstruction. Radiology. 168(2):477-9, 1988