Bell`s palsy, 안면신경마비, 안면근육실조

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Bell`s palsy disease riview입니다

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Pathophysiology
Clinical manifestation
Differential Diagnosis (1)
Diagnostic procedures
Treatment
Prognosis

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Pathophysiology
Dysfunction of the ipsilateral facial nerve
By unknown cause
Reactivation of HSV?
Inflammation of the facial nerve
Entrapment of the swollen nerve in the temporal bone
Clinical manifestation
Facial paralysis
Abrupt onset
Usually unilateral
Ipsilateral upper facial muscle weakness
Pain behind the ear
Unilateral loss of taste sensation
Hyperacusis
Dry eye
Differential Diagnosis (1)
Bell’s palsy: “Diagnosis of exclusion”
Should rule out other causes of facial palsy
Stroke: cortical, or brainstem
DM, HTN
Tumors
Cholesteatoma
Acoustic neuroma
Ramsay-Hunt syndrome
Guillain-Barre syndrome
Otitis: Acute, or chronic otitis media
Sarcoidosis (Heefordt syndrome)
Etc…
Differential Diagnosis (2)

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