Causes of Facial Weakness - Differential Diagnosis Algorithm

Forehead Sparing = Central cause

  - Most commonly stroke

  - Intracranial tumor

Forehead involved = Peripheral lesion

  - Bilateral (2% of facial nerve palsy)

  - Unilateral: Bell's Palsy (70-75%), Infection, Compression Tumor, Trauma



Dr. Ann Marie Kumfer @AnnKumfer



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