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
Hohman MH et al: Etiology, diagnosis, and management of facial palsy: 2000 patients at a facial nerve center. Laryngoscope. 124(7):E283-93, 2014
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
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
Baugh RF et al: Clinical practice guideline: Bell's palsy. Otolaryngol Head Neck Surg. 149(3 Suppl):S1-27, 2013
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
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
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
Sullivan FM et al: Early treatment with prednisolone or acyclovir in Bell's palsy. N Engl J Med. 357(16):1598-607, 2007
Kress B et al: Bell palsy: quantitative analysis of MR imaging data as a method of predicting outcome. Radiology. 230(2):504-9, 2004
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
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
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
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
Adour KK: Medical management of idiopathic (Bell's) palsy. Otolaryngol Clin North Am. 24(3):663-73, 1991
Schwaber MK et al: Gadolinium-enhanced magnetic resonance imaging in Bell's palsy. Laryngoscope. 100(12):1264-9, 1990
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
Daniels DL et al: MR imaging of facial nerve enhancement in Bell palsy or after temporal bone surgery. Radiology. 171(3):807-9, 1989
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
Hohman MH et al: Etiology, diagnosis, and management of facial palsy: 2000 patients at a facial nerve center. Laryngoscope. 124(7):E283-93, 2014
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
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
Baugh RF et al: Clinical practice guideline: Bell's palsy. Otolaryngol Head Neck Surg. 149(3 Suppl):S1-27, 2013
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
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
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
Sullivan FM et al: Early treatment with prednisolone or acyclovir in Bell's palsy. N Engl J Med. 357(16):1598-607, 2007
Kress B et al: Bell palsy: quantitative analysis of MR imaging data as a method of predicting outcome. Radiology. 230(2):504-9, 2004
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
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
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
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
Adour KK: Medical management of idiopathic (Bell's) palsy. Otolaryngol Clin North Am. 24(3):663-73, 1991
Schwaber MK et al: Gadolinium-enhanced magnetic resonance imaging in Bell's palsy. Laryngoscope. 100(12):1264-9, 1990
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
Daniels DL et al: MR imaging of facial nerve enhancement in Bell palsy or after temporal bone surgery. Radiology. 171(3):807-9, 1989
Matsumoto Y et al: Facial nerve biopsy for etiologic clarification of Bell's palsy. Ann Otol Rhinol Laryngol Suppl. 137:22-7, 1988
STATdx includes over 200,000 searchable images, including x-ray, CT, MR and ultrasound images. To access all images, please log in or subscribe.