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EAC Osteoma
H. Ric Harnsberger, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            • Diagnostic Checklist

              TERMINOLOGY

              • Abbreviations

                • External auditory canal (EAC) osteoma
              • Definitions

                • Rare, benign, focal, pedunculated, bony overgrowth of osseous EAC with normal overlying soft tissues

              IMAGING

              • General Features

                • CT Findings

                  • Imaging Recommendations

                    DIFFERENTIAL DIAGNOSIS

                      PATHOLOGY

                      • General Features

                        • Gross Pathologic & Surgical Features

                          • Microscopic Features

                            CLINICAL ISSUES

                            • Presentation

                              • Demographics

                                • Natural History & Prognosis

                                  • Treatment

                                    DIAGNOSTIC CHECKLIST

                                    • Image Interpretation Pearls

                                      Selected References

                                      1. Iizuka T et al: Large osteoma of the external auditory canal. Ear Nose Throat J. 92(7):286, 290, 2013
                                      2. Carbone PN et al: External auditory osteoma. Head Neck Pathol. 6(2):244-6, 2012
                                      3. Viswanatha B: Extracanalicular osteoma of the temporal bone. Ear Nose Throat J. 87(7):381-3, 2008
                                      4. Yuen HW et al: External auditory canal osteoma. Otol Neurotol. 29(6):875-6, 2008
                                      5. Woldenberg Y et al: Peripheral osteoma of the maxillofacial region. Diagnosis and management: a study of 14 cases. Med Oral Patol Oral Cir Bucal. 10 Suppl 2:E139-42, 2005
                                      6. Ramirez-Camacho R et al: Fibro-osseous lesions of the external auditory canal. Laryngoscope. 109(3):488-91, 1999
                                      7. Orita Y et al: Osteoma with cholesteatoma in the external auditory canal. Int J Pediatr Otorhinolaryngol. 43(3):289-93, 1998
                                      8. Kemink JL et al: Osteomas and exostoses of the external auditory canal - medical and surgical management. J Otolaryngol. 11(2):101-6, 1982
                                      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

                                                    • External auditory canal (EAC) osteoma
                                                  • Definitions

                                                    • Rare, benign, focal, pedunculated, bony overgrowth of osseous EAC with normal overlying soft tissues

                                                  IMAGING

                                                  • General Features

                                                    • CT Findings

                                                      • Imaging Recommendations

                                                        DIFFERENTIAL DIAGNOSIS

                                                          PATHOLOGY

                                                          • General Features

                                                            • Gross Pathologic & Surgical Features

                                                              • Microscopic Features

                                                                CLINICAL ISSUES

                                                                • Presentation

                                                                  • Demographics

                                                                    • Natural History & Prognosis

                                                                      • Treatment

                                                                        DIAGNOSTIC CHECKLIST

                                                                        • Image Interpretation Pearls

                                                                          Selected References

                                                                          1. Iizuka T et al: Large osteoma of the external auditory canal. Ear Nose Throat J. 92(7):286, 290, 2013
                                                                          2. Carbone PN et al: External auditory osteoma. Head Neck Pathol. 6(2):244-6, 2012
                                                                          3. Viswanatha B: Extracanalicular osteoma of the temporal bone. Ear Nose Throat J. 87(7):381-3, 2008
                                                                          4. Yuen HW et al: External auditory canal osteoma. Otol Neurotol. 29(6):875-6, 2008
                                                                          5. Woldenberg Y et al: Peripheral osteoma of the maxillofacial region. Diagnosis and management: a study of 14 cases. Med Oral Patol Oral Cir Bucal. 10 Suppl 2:E139-42, 2005
                                                                          6. Ramirez-Camacho R et al: Fibro-osseous lesions of the external auditory canal. Laryngoscope. 109(3):488-91, 1999
                                                                          7. Orita Y et al: Osteoma with cholesteatoma in the external auditory canal. Int J Pediatr Otorhinolaryngol. 43(3):289-93, 1998
                                                                          8. Kemink JL et al: Osteomas and exostoses of the external auditory canal - medical and surgical management. J Otolaryngol. 11(2):101-6, 1982