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Petrous Apex Mucocele
Luke N. Ledbetter, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            • Diagnostic Checklist

              TERMINOLOGY

              • Definitions

                • Mucus-containing, expanded petrous apex (PA) air cells(s) lined by secretory epithelium resulting from chronic ostial obstruction
                  • From Latin muco = mucous + Greek kele = tumor or mucous tumor

              IMAGING

              • General Features

                • Imaging Recommendations

                  • CT Findings

                    • MR Findings

                      DIFFERENTIAL DIAGNOSIS

                        PATHOLOGY

                        • General Features

                          • Microscopic Features

                            CLINICAL ISSUES

                            • Presentation

                              • Demographics

                                • Natural History & Prognosis

                                  • Treatment

                                    DIAGNOSTIC CHECKLIST

                                    • Consider

                                      Selected References

                                      1. Razek AA et al: Lesions of the petrous apex: classification and findings at CT and MR imaging. Radiographics. 32(1):151-73, 2012
                                      2. Chapman PR et al: Petrous apex lesions: pictorial review. AJR Am J Roentgenol. 196(3 Suppl):WS26-37 Quiz S40-3, 2011
                                      3. Le BT et al: Petrous apex mucocele. Otol Neurotol. 29(1):102-3, 2008
                                      4. Muckle RP et al: Petrous apex lesions. Am J Otol. 19(2):219-25, 1998
                                      5. Memis A et al: Petrous apex mucocele: high resolution CT. Neuroradiology. 36(8):632-3, 1994
                                      6. Larson TL et al: Primary mucocele of the petrous apex: MR appearance. AJNR Am J Neuroradiol. 13(1):203-4, 1992
                                      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

                                                  • Definitions

                                                    • Mucus-containing, expanded petrous apex (PA) air cells(s) lined by secretory epithelium resulting from chronic ostial obstruction
                                                      • From Latin muco = mucous + Greek kele = tumor or mucous tumor

                                                  IMAGING

                                                  • General Features

                                                    • Imaging Recommendations

                                                      • CT Findings

                                                        • MR Findings

                                                          DIFFERENTIAL DIAGNOSIS

                                                            PATHOLOGY

                                                            • General Features

                                                              • Microscopic Features

                                                                CLINICAL ISSUES

                                                                • Presentation

                                                                  • Demographics

                                                                    • Natural History & Prognosis

                                                                      • Treatment

                                                                        DIAGNOSTIC CHECKLIST

                                                                        • Consider

                                                                          Selected References

                                                                          1. Razek AA et al: Lesions of the petrous apex: classification and findings at CT and MR imaging. Radiographics. 32(1):151-73, 2012
                                                                          2. Chapman PR et al: Petrous apex lesions: pictorial review. AJR Am J Roentgenol. 196(3 Suppl):WS26-37 Quiz S40-3, 2011
                                                                          3. Le BT et al: Petrous apex mucocele. Otol Neurotol. 29(1):102-3, 2008
                                                                          4. Muckle RP et al: Petrous apex lesions. Am J Otol. 19(2):219-25, 1998
                                                                          5. Memis A et al: Petrous apex mucocele: high resolution CT. Neuroradiology. 36(8):632-3, 1994
                                                                          6. Larson TL et al: Primary mucocele of the petrous apex: MR appearance. AJNR Am J Neuroradiol. 13(1):203-4, 1992