Bell’s Palsy

Bell’s Palsy

Pathology:                Palsy of CN VII


Aetiology:                Commonest cause of lower motor neuron facial palsy

Idiopathic – possibly links to Herpes Simplex 1 Virus


Symptoms:                 Aching pain below mastoid, weakness of one side of the face, speech difficulties and drooling from one side of mouth


Signs:                        Weakness of one side of the face usually including forehead


Investigations:     Clinical Diagnosis: Based on exclusion of stroke and other neurological pathology


Treatment:              Medical: High dose oral prednisolone, eye lubrication and acyclovir


Complications:      Corneal ulceration, facial weakness, speech problems, contractures


Prognosis:               Excellent prognosis








Figure 6.3 Bell’s palsy


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