Facial Nerve Paralysis

[severe or complete loss of facial muscle motor function; this condition may result from central or peripheral lesions; damage to CNS motor pathways from the cerebral cortex to the facial nuclei in the pons leads to facial weakness that generally spares the forehead muscles; facial nerve diseases generally results in generalized hemifacial weakness; neuromuscular junction diseases and muscular diseases may also cause facial paralysis. ( CSP )]

UMLS (NCI) C0015469