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CPA-IAC Meningioma
H. Ric Harnsberger, MD
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19
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12

KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Clinical Issues

          TERMINOLOGY

          • Synonyms

            • Posterior fossa meningioma
          • Definitions

            • Benign, unencapsulated neoplasm arising from meningothelial arachnoid cells of CPA-IAC dura

          IMAGING

          • General Features

            • CT Findings

              • MR Findings

                • Angiographic Findings

                  • Imaging Recommendations

                    DIFFERENTIAL DIAGNOSIS

                      PATHOLOGY

                      • General Features

                        • Staging, Grading, & Classification

                          • 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. Park SH et al: Stereotactic radiosurgery for cerebellopontine angle meningiomas. J Neurosurg. 120(3):708-15, 2014
                                            2. Agarwal V et al: Cerebellopontine angle meningiomas: postoperative outcomes in a modern cohort. Neurosurg Focus. 35(6):E10, 2013
                                            3. Ishikura R et al: High Resolution Three-dimensional T(2)*-weighted Imaging at 3T: Findings of Cerebellopontine Angle Schwannomas and Meningiomas. Magn Reson Med Sci. 9(4):177-8, 2010
                                            4. Hu YF et al: Comparison of vestibular function between large cerebellopontine angle meningioma and schwannoma. Acta Otolaryngol. 129(2):161-5, 2009
                                            5. Takanashi M et al: Gamma knife radiosurgery for skull-base meningiomas. Prog Neurol Surg. 22:96-111, 2009
                                            6. Thamburaj K et al: Intratumoral microhemorrhages on T2*-weighted gradient-echo imaging helps differentiate vestibular schwannoma from meningioma. AJNR Am J Neuroradiol. 29(3):552-7, 2008
                                            7. Zeidman LA et al: Growth rate of non-operated meningiomas. J Neurol. 255(6):891-5, 2008
                                            8. Nakamura M et al: Facial and cochlear nerve function after surgery of cerebellopontine angle meningiomas. Neurosurgery. 57(1):77-90; discussion 77-90, 2005
                                            9. Roche PH et al: Cerebellopontine angle meningiomas. J Neurosurg. 103(5):935-7; author reply 937-8, 2005
                                            10. Roser F et al: Meningiomas of the cerebellopontine angle with extension into the internal auditory canal. J Neurosurg. 102(1):17-23, 2005
                                            11. Nakamura M et al: Meningiomas of the internal auditory canal. Neurosurgery. 55(1):119-27; discussion 127-8, 2004
                                            12. Whittle IR et al: Meningiomas. Lancet. 363(9420):1535-43, 2004
                                            13. Asaoka K et al: Intracanalicular meningioma mimicking vestibular schwannoma. AJNR Am J Neuroradiol. 23(9):1493-6, 2002
                                            14. Filippi CG et al: Appearance of meningiomas on diffusion-weighted images: correlating diffusion constants with histopathologic findings. AJNR Am J Neuroradiol. 22(1):65-72, 2001
                                            15. Roberti F et al: Posterior fossa meningiomas: surgical experience in 161 cases. Surg Neurol. 56(1):8-20; discussion 20-1, 2001
                                            16. Kuratsu J et al: Incidence and clinical features of asymptomatic meningiomas. J Neurosurg. 92(5):766-70, 2000
                                            17. Ildan F et al: Correlation of the relationships of brain-tumor interfaces, magnetic resonance imaging, and angiographic findings to predict cleavage of meningiomas. J Neurosurg. 91(3):384-90, 1999
                                            18. Yoshioka H et al: Peritumoral brain edema associated with meningioma: influence of vascular endothelial growth factor expression and vascular blood supply. Cancer. 85(4):936-44, 1999
                                            19. Haught K et al: Entirely intracanalicular meningioma: contrast-enhanced MR findings in a rare entity. AJNR Am J Neuroradiol. 19(10):1831-3, 1998
                                            20. Lalwani AK et al: Preoperative differentiation between meningioma of the cerebellopontine angle and acoustic neuroma using MRI. Otolaryngol Head Neck Surg. 109(1):88-95, 1993
                                            Related Anatomy
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                                            Related Differential Diagnoses
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                                            References
                                            Tables

                                            Tables

                                            KEY FACTS

                                            • Terminology

                                              • Imaging

                                                • Top Differential Diagnoses

                                                  • Clinical Issues

                                                    TERMINOLOGY

                                                    • Synonyms

                                                      • Posterior fossa meningioma
                                                    • Definitions

                                                      • Benign, unencapsulated neoplasm arising from meningothelial arachnoid cells of CPA-IAC dura

                                                    IMAGING

                                                    • General Features

                                                      • CT Findings

                                                        • MR Findings

                                                          • Angiographic Findings

                                                            • Imaging Recommendations

                                                              DIFFERENTIAL DIAGNOSIS

                                                                PATHOLOGY

                                                                • General Features

                                                                  • Staging, Grading, & Classification

                                                                    • 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. Park SH et al: Stereotactic radiosurgery for cerebellopontine angle meningiomas. J Neurosurg. 120(3):708-15, 2014
                                                                                      2. Agarwal V et al: Cerebellopontine angle meningiomas: postoperative outcomes in a modern cohort. Neurosurg Focus. 35(6):E10, 2013
                                                                                      3. Ishikura R et al: High Resolution Three-dimensional T(2)*-weighted Imaging at 3T: Findings of Cerebellopontine Angle Schwannomas and Meningiomas. Magn Reson Med Sci. 9(4):177-8, 2010
                                                                                      4. Hu YF et al: Comparison of vestibular function between large cerebellopontine angle meningioma and schwannoma. Acta Otolaryngol. 129(2):161-5, 2009
                                                                                      5. Takanashi M et al: Gamma knife radiosurgery for skull-base meningiomas. Prog Neurol Surg. 22:96-111, 2009
                                                                                      6. Thamburaj K et al: Intratumoral microhemorrhages on T2*-weighted gradient-echo imaging helps differentiate vestibular schwannoma from meningioma. AJNR Am J Neuroradiol. 29(3):552-7, 2008
                                                                                      7. Zeidman LA et al: Growth rate of non-operated meningiomas. J Neurol. 255(6):891-5, 2008
                                                                                      8. Nakamura M et al: Facial and cochlear nerve function after surgery of cerebellopontine angle meningiomas. Neurosurgery. 57(1):77-90; discussion 77-90, 2005
                                                                                      9. Roche PH et al: Cerebellopontine angle meningiomas. J Neurosurg. 103(5):935-7; author reply 937-8, 2005
                                                                                      10. Roser F et al: Meningiomas of the cerebellopontine angle with extension into the internal auditory canal. J Neurosurg. 102(1):17-23, 2005
                                                                                      11. Nakamura M et al: Meningiomas of the internal auditory canal. Neurosurgery. 55(1):119-27; discussion 127-8, 2004
                                                                                      12. Whittle IR et al: Meningiomas. Lancet. 363(9420):1535-43, 2004
                                                                                      13. Asaoka K et al: Intracanalicular meningioma mimicking vestibular schwannoma. AJNR Am J Neuroradiol. 23(9):1493-6, 2002
                                                                                      14. Filippi CG et al: Appearance of meningiomas on diffusion-weighted images: correlating diffusion constants with histopathologic findings. AJNR Am J Neuroradiol. 22(1):65-72, 2001
                                                                                      15. Roberti F et al: Posterior fossa meningiomas: surgical experience in 161 cases. Surg Neurol. 56(1):8-20; discussion 20-1, 2001
                                                                                      16. Kuratsu J et al: Incidence and clinical features of asymptomatic meningiomas. J Neurosurg. 92(5):766-70, 2000
                                                                                      17. Ildan F et al: Correlation of the relationships of brain-tumor interfaces, magnetic resonance imaging, and angiographic findings to predict cleavage of meningiomas. J Neurosurg. 91(3):384-90, 1999
                                                                                      18. Yoshioka H et al: Peritumoral brain edema associated with meningioma: influence of vascular endothelial growth factor expression and vascular blood supply. Cancer. 85(4):936-44, 1999
                                                                                      19. Haught K et al: Entirely intracanalicular meningioma: contrast-enhanced MR findings in a rare entity. AJNR Am J Neuroradiol. 19(10):1831-3, 1998
                                                                                      20. Lalwani AK et al: Preoperative differentiation between meningioma of the cerebellopontine angle and acoustic neuroma using MRI. Otolaryngol Head Neck Surg. 109(1):88-95, 1993