link
Bookmarks
 (0)
Head and Neck
Diagnosis
Temporal Bone
Intratemporal Facial Nerve
Infectious and Inflammatory Lesions
Bell Palsy
Bell Palsy
H. Ric Harnsberger, MD
To access 4,300 diagnoses written by the world's leading experts in radiology, please log in or subscribe.Log inSubscribe
1
9
3
3

KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            TERMINOLOGY

            • Abbreviations

              • Bell palsy (BP)

            • Synonyms

              • Herpetic facial paralysis

            • Definitions

              • BP (original definition): Idiopathic acute onset of lower motor neuron facial paralysis
              • BP (modern definition): Herpetic facial paralysis secondary to herpes simplex virus

            • Other Facts

              • Named after Sir Charles Bell (1774-1842), who 1st described BP syndrome

            IMAGING

            • General Features

              • CT Findings

                • MR 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. Hohman MH et al: Etiology, diagnosis, and management of facial palsy: 2000 patients at a facial nerve center. Laryngoscope. 124(7):E283-93, 2014
                                          2. Vianna M et al: Differences in the diameter of facial nerve and facial canal in bell's palsy--a 3-dimensional temporal bone study. Otol Neurotol. 35(3):514-8, 2014
                                          3. Zandian A et al: The neurologist's dilemma: a comprehensive clinical review of Bell's palsy, with emphasis on current management trends. Med Sci Monit. 20:83-90, 2014
                                          4. Baugh RF et al: Clinical practice guideline: Bell's palsy. Otolaryngol Head Neck Surg. 149(3 Suppl):S1-27, 2013
                                          5. Song MH et al: Clinical significance of quantitative analysis of facial nerve enhancement on MRI in Bell's palsy. Acta Otolaryngol. 128(11):1259-65, 2008
                                          6. Yeo SG et al: Acyclovir plus steroid vs steroid alone in the treatment of Bell's palsy. Am J Otolaryngol. 29(3):163-6, 2008
                                          7. Kim IS et al: Correlation between MRI and operative findings in Bell's palsy and Ramsay Hunt syndrome. Yonsei Med J. 48(6):963-8, 2007
                                          8. Sullivan FM et al: Early treatment with prednisolone or acyclovir in Bell's palsy. N Engl J Med. 357(16):1598-607, 2007
                                          9. Kress B et al: Bell palsy: quantitative analysis of MR imaging data as a method of predicting outcome. Radiology. 230(2):504-9, 2004
                                          10. Unlu Z et al: Serologic examinations of hepatitis, cytomegalovirus, and rubella in patients with Bell's palsy. Am J Phys Med Rehabil. 82(1):28-32, 2003
                                          11. Kress BP et al: Bell's palsy: what is the prognostic value of measurements of signal intensity increases with contrast enhancement on MRI? Neuroradiology. 44(5):428-33, 2002
                                          12. Suzuki F et al: Herpes virus reactivation and gadolinium-enhanced magnetic resonance imaging in patients with facial palsy. Otol Neurotol. 22(4):549-53, 2001
                                          13. Engstrom M et al: Serial gadolinium-enhanced magnetic resonance imaging and assessment of facial nerve function in Bell's palsy. Otolaryngol Head Neck Surg. 117(5):559-66, 1997
                                          14. Adour KK: Medical management of idiopathic (Bell's) palsy. Otolaryngol Clin North Am. 24(3):663-73, 1991
                                          15. Schwaber MK et al: Gadolinium-enhanced magnetic resonance imaging in Bell's palsy. Laryngoscope. 100(12):1264-9, 1990
                                          16. Tien R et al: Contrast-enhanced MR imaging of the facial nerve in 11 patients with Bell's palsy. AJNR Am J Neuroradiol. 11(4):735-41, 1990
                                          17. Daniels DL et al: MR imaging of facial nerve enhancement in Bell palsy or after temporal bone surgery. Radiology. 171(3):807-9, 1989
                                          18. Matsumoto Y et al: Facial nerve biopsy for etiologic clarification of Bell's palsy. Ann Otol Rhinol Laryngol Suppl. 137:22-7, 1988
                                          Related Anatomy
                                          Loading...
                                          Related Differential Diagnoses
                                          Loading...
                                          References
                                          Tables

                                          Tables

                                          KEY FACTS

                                          • Terminology

                                            • Imaging

                                              • Top Differential Diagnoses

                                                • Pathology

                                                  • Clinical Issues

                                                    TERMINOLOGY

                                                    • Abbreviations

                                                      • Bell palsy (BP)

                                                    • Synonyms

                                                      • Herpetic facial paralysis

                                                    • Definitions

                                                      • BP (original definition): Idiopathic acute onset of lower motor neuron facial paralysis
                                                      • BP (modern definition): Herpetic facial paralysis secondary to herpes simplex virus

                                                    • Other Facts

                                                      • Named after Sir Charles Bell (1774-1842), who 1st described BP syndrome

                                                    IMAGING

                                                    • General Features

                                                      • CT Findings

                                                        • MR 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. Hohman MH et al: Etiology, diagnosis, and management of facial palsy: 2000 patients at a facial nerve center. Laryngoscope. 124(7):E283-93, 2014
                                                                                  2. Vianna M et al: Differences in the diameter of facial nerve and facial canal in bell's palsy--a 3-dimensional temporal bone study. Otol Neurotol. 35(3):514-8, 2014
                                                                                  3. Zandian A et al: The neurologist's dilemma: a comprehensive clinical review of Bell's palsy, with emphasis on current management trends. Med Sci Monit. 20:83-90, 2014
                                                                                  4. Baugh RF et al: Clinical practice guideline: Bell's palsy. Otolaryngol Head Neck Surg. 149(3 Suppl):S1-27, 2013
                                                                                  5. Song MH et al: Clinical significance of quantitative analysis of facial nerve enhancement on MRI in Bell's palsy. Acta Otolaryngol. 128(11):1259-65, 2008
                                                                                  6. Yeo SG et al: Acyclovir plus steroid vs steroid alone in the treatment of Bell's palsy. Am J Otolaryngol. 29(3):163-6, 2008
                                                                                  7. Kim IS et al: Correlation between MRI and operative findings in Bell's palsy and Ramsay Hunt syndrome. Yonsei Med J. 48(6):963-8, 2007
                                                                                  8. Sullivan FM et al: Early treatment with prednisolone or acyclovir in Bell's palsy. N Engl J Med. 357(16):1598-607, 2007
                                                                                  9. Kress B et al: Bell palsy: quantitative analysis of MR imaging data as a method of predicting outcome. Radiology. 230(2):504-9, 2004
                                                                                  10. Unlu Z et al: Serologic examinations of hepatitis, cytomegalovirus, and rubella in patients with Bell's palsy. Am J Phys Med Rehabil. 82(1):28-32, 2003
                                                                                  11. Kress BP et al: Bell's palsy: what is the prognostic value of measurements of signal intensity increases with contrast enhancement on MRI? Neuroradiology. 44(5):428-33, 2002
                                                                                  12. Suzuki F et al: Herpes virus reactivation and gadolinium-enhanced magnetic resonance imaging in patients with facial palsy. Otol Neurotol. 22(4):549-53, 2001
                                                                                  13. Engstrom M et al: Serial gadolinium-enhanced magnetic resonance imaging and assessment of facial nerve function in Bell's palsy. Otolaryngol Head Neck Surg. 117(5):559-66, 1997
                                                                                  14. Adour KK: Medical management of idiopathic (Bell's) palsy. Otolaryngol Clin North Am. 24(3):663-73, 1991
                                                                                  15. Schwaber MK et al: Gadolinium-enhanced magnetic resonance imaging in Bell's palsy. Laryngoscope. 100(12):1264-9, 1990
                                                                                  16. Tien R et al: Contrast-enhanced MR imaging of the facial nerve in 11 patients with Bell's palsy. AJNR Am J Neuroradiol. 11(4):735-41, 1990
                                                                                  17. Daniels DL et al: MR imaging of facial nerve enhancement in Bell palsy or after temporal bone surgery. Radiology. 171(3):807-9, 1989
                                                                                  18. Matsumoto Y et al: Facial nerve biopsy for etiologic clarification of Bell's palsy. Ann Otol Rhinol Laryngol Suppl. 137:22-7, 1988