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Choanal Atresia
Michelle A. Michel, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            • Diagnostic Checklist

              TERMINOLOGY

              • Abbreviations

                • Choanal atresia (CAt)
              • Definitions

                • Congenital obstruction of posterior nasal apertures

              IMAGING

              • General Features

                • CT Findings

                  • Imaging Recommendations

                    DIFFERENTIAL DIAGNOSIS

                      PATHOLOGY

                      • General Features

                        • Staging, Grading, & Classification

                          • Gross Pathologic & Surgical Features

                            CLINICAL ISSUES

                            • Presentation

                              • Demographics

                                • Natural History & Prognosis

                                  • Treatment

                                    DIAGNOSTIC CHECKLIST

                                    • Consider

                                      • Image Interpretation Pearls

                                        • Reporting Tips

                                          Selected References

                                          1. Kinis V et al: Patients with congenital choanal atresia treated by transnasal endoscopic surgery. J Craniofac Surg. 25(3):892-7, 2014
                                          2. Gnagi SH et al: Nasal obstruction in newborns. Pediatr Clin North Am. 60(4):903-22, 2013
                                          3. Newman JR et al: Operative management of choanal atresia: a 15-year experience. JAMA Otolaryngol Head Neck Surg. 139(1):71-5, 2013
                                          4. Velegrakis S et al: Long-term outcomes of endonasal surgery for choanal atresia: 28 years experience in an academic medical centre. Eur Arch Otorhinolaryngol. 270(1):113-6, 2013
                                          5. Adil E et al: Congenital nasal obstruction: clinical and radiologic review. Eur J Pediatr. 171(4):641-50, 2012
                                          6. Aslan S et al: Comparison of nasal region dimensions in bilateral choanal atresia patients and normal controls: a computed tomographic analysis with clinical implications. Int J Pediatr Otorhinolaryngol. 73(2):329-35, 2009
                                          7. Burrow TA et al: Characterization of congenital anomalies in individuals with choanal atresia. Arch Otolaryngol Head Neck Surg. 135(6):543-7, 2009
                                          8. Corrales CE et al: Choanal atresia: current concepts and controversies. Curr Opin Otolaryngol Head Neck Surg. 17(6):466-70, 2009
                                          9. Ramsden JD et al: Choanal atresia and choanal stenosis. Otolaryngol Clin North Am. 42(2):339-52, x, 2009
                                          10. Hengerer AS et al: Choanal atresia: embryologic analysis and evolution of treatment, a 30-year experience. Laryngoscope. 118(5):862-6, 2008
                                          11. Petkovska L et al: CT evaluation of congenital choanal atresia: our experience and review of the literature. Australas Radiol. 51(3):236-9, 2007
                                          12. Uslu H et al: Bilateral choanal atresia; evaluation with scintigraphy: case report. Int J Pediatr Otorhinolaryngol. 70(1):171-3, 2006
                                          13. Samadi DS et al: Choanal atresia: a twenty-year review of medical comorbidities and surgical outcomes. Laryngoscope. 113(2):254-8, 2003
                                          14. Shah RK et al: Paranasal sinus development: a radiographic study. Laryngoscope. 113(2):205-9, 2003
                                          15. Triglia JM et al: [Choanal atresia: therapeutic management and results in a series of 58 children] Rev Laryngol Otol Rhinol (Bord). 124(3):139-43, 2003
                                          16. Holzmann D et al: Unilateral choanal atresia: surgical technique and long-term results. J Laryngol Otol. 116(8):601-4, 2002
                                          17. Faust RA et al: Assessment of congenital bony nasal obstruction by 3-dimensional CT volume rendering. Int J Pediatr Otorhinolaryngol. 61(1):71-5, 2001
                                          18. Vanzieleghem BD et al: Imaging studies in the diagnostic workup of neonatal nasal obstruction. J Comput Assist Tomogr. 25(4):540-9, 2001
                                          19. Behar PM et al: Paranasal sinus development and choanal atresia. Arch Otolaryngol Head Neck Surg. 126(2):155-7, 2000
                                          20. Keller JL et al: Choanal atresia, CHARGE association, and congenital nasal stenosis. Otolaryngol Clin North Am. 33(6):1343-51, viii, 2000
                                          21. Lowe LH et al: Midface anomalies in children. Radiographics. 20(4):907-22; quiz 1106-7, 1112, 2000
                                          22. Hsu CY et al: Congenital choanal atresia: computed tomographic and clinical findings. Acta Paediatr Taiwan. 40(1):13-7, 1999
                                          23. Black CM et al: Potential pitfalls in the work-up and diagnosis of choanal atresia. AJNR Am J Neuroradiol. 19(2):326-9, 1998
                                          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

                                                        • Choanal atresia (CAt)
                                                      • Definitions

                                                        • Congenital obstruction of posterior nasal apertures

                                                      IMAGING

                                                      • General Features

                                                        • CT Findings

                                                          • Imaging Recommendations

                                                            DIFFERENTIAL DIAGNOSIS

                                                              PATHOLOGY

                                                              • General Features

                                                                • Staging, Grading, & Classification

                                                                  • Gross Pathologic & Surgical Features

                                                                    CLINICAL ISSUES

                                                                    • Presentation

                                                                      • Demographics

                                                                        • Natural History & Prognosis

                                                                          • Treatment

                                                                            DIAGNOSTIC CHECKLIST

                                                                            • Consider

                                                                              • Image Interpretation Pearls

                                                                                • Reporting Tips

                                                                                  Selected References

                                                                                  1. Kinis V et al: Patients with congenital choanal atresia treated by transnasal endoscopic surgery. J Craniofac Surg. 25(3):892-7, 2014
                                                                                  2. Gnagi SH et al: Nasal obstruction in newborns. Pediatr Clin North Am. 60(4):903-22, 2013
                                                                                  3. Newman JR et al: Operative management of choanal atresia: a 15-year experience. JAMA Otolaryngol Head Neck Surg. 139(1):71-5, 2013
                                                                                  4. Velegrakis S et al: Long-term outcomes of endonasal surgery for choanal atresia: 28 years experience in an academic medical centre. Eur Arch Otorhinolaryngol. 270(1):113-6, 2013
                                                                                  5. Adil E et al: Congenital nasal obstruction: clinical and radiologic review. Eur J Pediatr. 171(4):641-50, 2012
                                                                                  6. Aslan S et al: Comparison of nasal region dimensions in bilateral choanal atresia patients and normal controls: a computed tomographic analysis with clinical implications. Int J Pediatr Otorhinolaryngol. 73(2):329-35, 2009
                                                                                  7. Burrow TA et al: Characterization of congenital anomalies in individuals with choanal atresia. Arch Otolaryngol Head Neck Surg. 135(6):543-7, 2009
                                                                                  8. Corrales CE et al: Choanal atresia: current concepts and controversies. Curr Opin Otolaryngol Head Neck Surg. 17(6):466-70, 2009
                                                                                  9. Ramsden JD et al: Choanal atresia and choanal stenosis. Otolaryngol Clin North Am. 42(2):339-52, x, 2009
                                                                                  10. Hengerer AS et al: Choanal atresia: embryologic analysis and evolution of treatment, a 30-year experience. Laryngoscope. 118(5):862-6, 2008
                                                                                  11. Petkovska L et al: CT evaluation of congenital choanal atresia: our experience and review of the literature. Australas Radiol. 51(3):236-9, 2007
                                                                                  12. Uslu H et al: Bilateral choanal atresia; evaluation with scintigraphy: case report. Int J Pediatr Otorhinolaryngol. 70(1):171-3, 2006
                                                                                  13. Samadi DS et al: Choanal atresia: a twenty-year review of medical comorbidities and surgical outcomes. Laryngoscope. 113(2):254-8, 2003
                                                                                  14. Shah RK et al: Paranasal sinus development: a radiographic study. Laryngoscope. 113(2):205-9, 2003
                                                                                  15. Triglia JM et al: [Choanal atresia: therapeutic management and results in a series of 58 children] Rev Laryngol Otol Rhinol (Bord). 124(3):139-43, 2003
                                                                                  16. Holzmann D et al: Unilateral choanal atresia: surgical technique and long-term results. J Laryngol Otol. 116(8):601-4, 2002
                                                                                  17. Faust RA et al: Assessment of congenital bony nasal obstruction by 3-dimensional CT volume rendering. Int J Pediatr Otorhinolaryngol. 61(1):71-5, 2001
                                                                                  18. Vanzieleghem BD et al: Imaging studies in the diagnostic workup of neonatal nasal obstruction. J Comput Assist Tomogr. 25(4):540-9, 2001
                                                                                  19. Behar PM et al: Paranasal sinus development and choanal atresia. Arch Otolaryngol Head Neck Surg. 126(2):155-7, 2000
                                                                                  20. Keller JL et al: Choanal atresia, CHARGE association, and congenital nasal stenosis. Otolaryngol Clin North Am. 33(6):1343-51, viii, 2000
                                                                                  21. Lowe LH et al: Midface anomalies in children. Radiographics. 20(4):907-22; quiz 1106-7, 1112, 2000
                                                                                  22. Hsu CY et al: Congenital choanal atresia: computed tomographic and clinical findings. Acta Paediatr Taiwan. 40(1):13-7, 1999
                                                                                  23. Black CM et al: Potential pitfalls in the work-up and diagnosis of choanal atresia. AJNR Am J Neuroradiol. 19(2):326-9, 1998