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Congenital Petrous Apex Cholesteatoma
H. Ric Harnsberger, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            TERMINOLOGY

            • Abbreviations

              • Petrous apex cholesteatoma (PA-Chol)
            • Synonyms

              • Congenital cholesteatoma, epidermoid cyst of petrous apex (PA)
            • Definitions

              • PA-Chol: PA focus of cholesteatoma due to epithelial rest of embryonal origin

            IMAGING

            • General Features

              • CT Findings

                • MR Findings

                  • Angiographic Findings

                    • Imaging Recommendations

                      DIFFERENTIAL DIAGNOSIS

                        PATHOLOGY

                        • General Features

                          • Gross Pathologic & Surgical Features

                            • Microscopic Features

                              CLINICAL ISSUES

                              • Presentation

                                • Demographics

                                  • Natural History & Prognosis

                                    • Treatment

                                      DIAGNOSTIC CHECKLIST

                                      • Consider

                                        • Image Interpretation Pearls

                                          • Reporting Tips

                                            Selected References

                                            1. MacKeith SA et al: Recurrent aseptic meningitis as a rare but important presentation of congenital petrous apex cholesteatoma: the value of appropriate imaging. BMJ Case Rep. 2014, 2014
                                            2. De Foer B et al: Diffusion-weighted magnetic resonance imaging of the temporal bone. Neuroradiology. 52(9):785-807, 2010
                                            3. Connor SE et al: Imaging of the petrous apex: a pictorial review. Br J Radiol. 81(965):427-35, 2008
                                            4. Kojima H et al: Congenital cholesteatoma clinical features and surgical results. Am J Otolaryngol. 27(5):299-305, 2006
                                            5. Mattox DE: Endoscopy-assisted surgery of the petrous apex. Otolaryngol Head Neck Surg. 130(2):229-41, 2004
                                            6. Profant M et al: Petrous apex cholesteatoma. Acta Otolaryngol. 120(2):164-7, 2000
                                            7. Chang P et al: Imaging destructive lesions of the petrous apex. Laryngoscope. 108(4 Pt 1):599-604, 1998
                                            8. Mafee MF: MRI and CT in the evaluation of acquired and congenital cholesteatomas of the temporal bone. J Otolaryngol. 22(4):239-48, 1993
                                            9. Atlas MD et al: Petrous apex cholesteatoma: diagnostic and treatment dilemmas. Laryngoscope. 102(12 Pt 1):1363-8, 1992
                                            10. Ishii K et al: Middle ear cholesteatoma extending into the petrous apex: evaluation by CT and MR imaging. AJNR Am J Neuroradiol. 12(4):719-24, 1991
                                            11. Glasscock ME 3rd et al: Petrous apex cholesteatoma. Otolaryngol Clin North Am. 22(5):981-1002, 1989
                                            12. Rosenberg RA et al: Cholesteatoma vs. cholesterol granuloma of the petrous apex. Otolaryngol Head Neck Surg. 94(3):322-7, 1986
                                            13. Horn KL et al: Congenital cholesteatoma of the petrous pyramid. Arch Otolaryngol. 111(9):621-2, 1985
                                            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

                                                      TERMINOLOGY

                                                      • Abbreviations

                                                        • Petrous apex cholesteatoma (PA-Chol)
                                                      • Synonyms

                                                        • Congenital cholesteatoma, epidermoid cyst of petrous apex (PA)
                                                      • Definitions

                                                        • PA-Chol: PA focus of cholesteatoma due to epithelial rest of embryonal origin

                                                      IMAGING

                                                      • General Features

                                                        • CT Findings

                                                          • MR Findings

                                                            • Angiographic Findings

                                                              • Imaging Recommendations

                                                                DIFFERENTIAL DIAGNOSIS

                                                                  PATHOLOGY

                                                                  • General Features

                                                                    • Gross Pathologic & Surgical Features

                                                                      • Microscopic Features

                                                                        CLINICAL ISSUES

                                                                        • Presentation

                                                                          • Demographics

                                                                            • Natural History & Prognosis

                                                                              • Treatment

                                                                                DIAGNOSTIC CHECKLIST

                                                                                • Consider

                                                                                  • Image Interpretation Pearls

                                                                                    • Reporting Tips

                                                                                      Selected References

                                                                                      1. MacKeith SA et al: Recurrent aseptic meningitis as a rare but important presentation of congenital petrous apex cholesteatoma: the value of appropriate imaging. BMJ Case Rep. 2014, 2014
                                                                                      2. De Foer B et al: Diffusion-weighted magnetic resonance imaging of the temporal bone. Neuroradiology. 52(9):785-807, 2010
                                                                                      3. Connor SE et al: Imaging of the petrous apex: a pictorial review. Br J Radiol. 81(965):427-35, 2008
                                                                                      4. Kojima H et al: Congenital cholesteatoma clinical features and surgical results. Am J Otolaryngol. 27(5):299-305, 2006
                                                                                      5. Mattox DE: Endoscopy-assisted surgery of the petrous apex. Otolaryngol Head Neck Surg. 130(2):229-41, 2004
                                                                                      6. Profant M et al: Petrous apex cholesteatoma. Acta Otolaryngol. 120(2):164-7, 2000
                                                                                      7. Chang P et al: Imaging destructive lesions of the petrous apex. Laryngoscope. 108(4 Pt 1):599-604, 1998
                                                                                      8. Mafee MF: MRI and CT in the evaluation of acquired and congenital cholesteatomas of the temporal bone. J Otolaryngol. 22(4):239-48, 1993
                                                                                      9. Atlas MD et al: Petrous apex cholesteatoma: diagnostic and treatment dilemmas. Laryngoscope. 102(12 Pt 1):1363-8, 1992
                                                                                      10. Ishii K et al: Middle ear cholesteatoma extending into the petrous apex: evaluation by CT and MR imaging. AJNR Am J Neuroradiol. 12(4):719-24, 1991
                                                                                      11. Glasscock ME 3rd et al: Petrous apex cholesteatoma. Otolaryngol Clin North Am. 22(5):981-1002, 1989
                                                                                      12. Rosenberg RA et al: Cholesteatoma vs. cholesterol granuloma of the petrous apex. Otolaryngol Head Neck Surg. 94(3):322-7, 1986
                                                                                      13. Horn KL et al: Congenital cholesteatoma of the petrous pyramid. Arch Otolaryngol. 111(9):621-2, 1985