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External Auditory Canal Lesion
Nicholas A. Koontz, MD
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DIFFERENTIAL DIAGNOSIS

    ESSENTIAL INFORMATION

    • Key Differential Diagnosis Issues

      • Helpful Clues for Common Diagnoses

        • Helpful Clues for Less Common Diagnoses

          • Helpful Clues for Rare Diagnoses

            • Alternative Differential Approaches

              Selected References

              1. Morita S et al: Clinical characteristics and treatment outcomes for patients with external auditory canal cholesteatoma. Otol Neurotol. 39(2):189-195, 2018
              2. Widmann G: Head & Neck MRI: What ENT specialists should know. Laryngorhinootologie. 97(3):206-214, 2018
              3. Thompson LD: Update from the 4th edition of the World Health Organization classification of head and neck tumours: tumours of the ear. Head Neck Pathol. 11(1):78-87, 2017
              4. Adams A et al: Branchial cleft anomalies: a pictorial review of embryological development and spectrum of imaging findings. Insights Imaging. 7(1):69-76, 2016
              5. Hobson CE et al: Malignant otitis externa: evolving pathogens and implications for diagnosis and treatment. Otolaryngol Head Neck Surg. 151(1):112-116, 2014
              6. Adams A et al: Central skull base osteomyelitis as a complication of necrotizing otitis externa: Imaging findings, complications, and challenges of diagnosis. Clin Radiol. 67(10):e7-e16, 2012
              7. Ludwig BJ et al: Diagnostic imaging in nontraumatic pediatric head and neck emergencies. Radiographics. 30(3):781-99, 2010
              8. Kösling S et al: Congenital malformations of the external and middle ear. Eur J Radiol. 69(2):269-79, 2009
              9. Lobo D et al: Squamous cell carcinoma of the external auditory canal. Skull Base. 18(3):167-72, 2008
              10. Yu Z et al: Facial nerve course in congenital aural atresia--identified by preoperative CT scanning and surgical findings. Acta Otolaryngol. 128(12):1375-80, 2008
              11. Gassner EM et al: Preoperative evaluation of external auditory canal atresia on high-resolution CT. AJR Am J Roentgenol. 182(5):1305-12, 2004
              12. Heilbrun ME et al: External auditory canal cholesteatoma: clinical and imaging spectrum. AJNR Am J Neuroradiol. 24(4):751-6, 2003
              13. Hopsu E et al: Idiopathic inflammatory medial meatal fibrotizing otitis. Arch Otolaryngol Head Neck Surg. 128(11):1313-6, 2002
              14. Grandis JR et al: Necrotizing (malignant) external otitis: prospective comparison of CT and MR imaging in diagnosis and follow-up. Radiology. 196(2):499-504, 1995
              Related Anatomy
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              Related Differential Diagnoses
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              References
              Tables

              Tables

              DIFFERENTIAL DIAGNOSIS

                ESSENTIAL INFORMATION

                • Key Differential Diagnosis Issues

                  • Helpful Clues for Common Diagnoses

                    • Helpful Clues for Less Common Diagnoses

                      • Helpful Clues for Rare Diagnoses

                        • Alternative Differential Approaches

                          Selected References

                          1. Morita S et al: Clinical characteristics and treatment outcomes for patients with external auditory canal cholesteatoma. Otol Neurotol. 39(2):189-195, 2018
                          2. Widmann G: Head & Neck MRI: What ENT specialists should know. Laryngorhinootologie. 97(3):206-214, 2018
                          3. Thompson LD: Update from the 4th edition of the World Health Organization classification of head and neck tumours: tumours of the ear. Head Neck Pathol. 11(1):78-87, 2017
                          4. Adams A et al: Branchial cleft anomalies: a pictorial review of embryological development and spectrum of imaging findings. Insights Imaging. 7(1):69-76, 2016
                          5. Hobson CE et al: Malignant otitis externa: evolving pathogens and implications for diagnosis and treatment. Otolaryngol Head Neck Surg. 151(1):112-116, 2014
                          6. Adams A et al: Central skull base osteomyelitis as a complication of necrotizing otitis externa: Imaging findings, complications, and challenges of diagnosis. Clin Radiol. 67(10):e7-e16, 2012
                          7. Ludwig BJ et al: Diagnostic imaging in nontraumatic pediatric head and neck emergencies. Radiographics. 30(3):781-99, 2010
                          8. Kösling S et al: Congenital malformations of the external and middle ear. Eur J Radiol. 69(2):269-79, 2009
                          9. Lobo D et al: Squamous cell carcinoma of the external auditory canal. Skull Base. 18(3):167-72, 2008
                          10. Yu Z et al: Facial nerve course in congenital aural atresia--identified by preoperative CT scanning and surgical findings. Acta Otolaryngol. 128(12):1375-80, 2008
                          11. Gassner EM et al: Preoperative evaluation of external auditory canal atresia on high-resolution CT. AJR Am J Roentgenol. 182(5):1305-12, 2004
                          12. Heilbrun ME et al: External auditory canal cholesteatoma: clinical and imaging spectrum. AJNR Am J Neuroradiol. 24(4):751-6, 2003
                          13. Hopsu E et al: Idiopathic inflammatory medial meatal fibrotizing otitis. Arch Otolaryngol Head Neck Surg. 128(11):1313-6, 2002
                          14. Grandis JR et al: Necrotizing (malignant) external otitis: prospective comparison of CT and MR imaging in diagnosis and follow-up. Radiology. 196(2):499-504, 1995