link
Bookmarks
Intratemporal Facial Nerve Enhancement
Philip R. Chapman, MD
To access 4,300 diagnoses written by the world's leading experts in radiology, please log in or subscribe.Subscribe
0
5
3
1

KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Clinical Issues

          • Diagnostic Checklist

            TERMINOLOGY

            • Definitions

              • Normal contrast enhancement (CE) along course of intratemporal facial nerve (CNVII); typically mild to moderate, symmetric with contralateral facial nerve and without bone changes or facial nerve symptoms
              • Prominent perineural arteriovenous plexus responsible for normal enhancement

            IMAGING

            • General Features

              • CT Findings

                • MR Findings

                  • Imaging Recommendations

                    DIFFERENTIAL DIAGNOSIS

                      PATHOLOGY

                      • General Features

                        • Gross Pathologic & Surgical Features

                          • Microscopic Features

                            CLINICAL ISSUES

                            • Presentation

                              DIAGNOSTIC CHECKLIST

                              • Consider

                                Selected References

                                1. George E et al: Facial nerve palsy: clinical practice and cognitive errors. Am J Med. 133(9):1039-44, 2020
                                2. Radhakrishnan R et al: Comparison of normal facial nerve enhancement at 3T MRI using gadobutrol and gadopentetate dimeglumine. Neuroradiol J. 30(6):554-60, 2017
                                3. Dehkharghani S et al: Redefining normal facial nerve enhancement: healthy subject comparison of typical enhancement patterns--unenhanced and contrast-enhanced spin-echo versus 3D inversion recovery-prepared fast spoiled gradient-echo imaging. AJR Am J Roentgenol. 202(5):1108-13, 2014
                                4. Hong HS et al: Enhancement pattern of the normal facial nerve at 3.0 T temporal MRI. Br J Radiol. 83(986):118-21, 2010
                                5. Tabuchi T et al: Vascular permeability to fluorescent substance in human cranial nerves. Ann Otol Rhinol Laryngol. 111(8):736-7, 2002
                                6. Martin-Duverneuil N et al: Contrast enhancement of the facial nerve on MRI: normal or pathological? Neuroradiology. 39(3):207-12, 1997
                                7. Gebarski SS et al: Enhancement along the normal facial nerve in the facial canal: MR imaging and anatomic correlation. Radiology. 183(2):391-4, 1992
                                Related Anatomy
                                Loading...
                                Related Differential Diagnoses
                                Loading...
                                References
                                Tables

                                Tables

                                KEY FACTS

                                • Terminology

                                  • Imaging

                                    • Top Differential Diagnoses

                                      • Clinical Issues

                                        • Diagnostic Checklist

                                          TERMINOLOGY

                                          • Definitions

                                            • Normal contrast enhancement (CE) along course of intratemporal facial nerve (CNVII); typically mild to moderate, symmetric with contralateral facial nerve and without bone changes or facial nerve symptoms
                                            • Prominent perineural arteriovenous plexus responsible for normal enhancement

                                          IMAGING

                                          • General Features

                                            • CT Findings

                                              • MR Findings

                                                • Imaging Recommendations

                                                  DIFFERENTIAL DIAGNOSIS

                                                    PATHOLOGY

                                                    • General Features

                                                      • Gross Pathologic & Surgical Features

                                                        • Microscopic Features

                                                          CLINICAL ISSUES

                                                          • Presentation

                                                            DIAGNOSTIC CHECKLIST

                                                            • Consider

                                                              Selected References

                                                              1. George E et al: Facial nerve palsy: clinical practice and cognitive errors. Am J Med. 133(9):1039-44, 2020
                                                              2. Radhakrishnan R et al: Comparison of normal facial nerve enhancement at 3T MRI using gadobutrol and gadopentetate dimeglumine. Neuroradiol J. 30(6):554-60, 2017
                                                              3. Dehkharghani S et al: Redefining normal facial nerve enhancement: healthy subject comparison of typical enhancement patterns--unenhanced and contrast-enhanced spin-echo versus 3D inversion recovery-prepared fast spoiled gradient-echo imaging. AJR Am J Roentgenol. 202(5):1108-13, 2014
                                                              4. Hong HS et al: Enhancement pattern of the normal facial nerve at 3.0 T temporal MRI. Br J Radiol. 83(986):118-21, 2010
                                                              5. Tabuchi T et al: Vascular permeability to fluorescent substance in human cranial nerves. Ann Otol Rhinol Laryngol. 111(8):736-7, 2002
                                                              6. Martin-Duverneuil N et al: Contrast enhancement of the facial nerve on MRI: normal or pathological? Neuroradiology. 39(3):207-12, 1997
                                                              7. Gebarski SS et al: Enhancement along the normal facial nerve in the facial canal: MR imaging and anatomic correlation. Radiology. 183(2):391-4, 1992