Trigeminal nerve palsy
Trigeminal nerve palsy is paralysis of the fifth cranial nerve.
In the neurological examination the following ought to be tested in order to check for trigeminal palsy:
- sensation:
- light touch
- pain
- cold
- tested in all three divisions
- function of:
- masseter - clenching the jaw and feeling for the muscle bulk over the angle of the mandible
- pterygoids - moving the jaw from side to side
- corneal reflexes - only if appropriate.
Reference
- Ghislain B, Rabinstein AA, Braksick SA. Etiologies and Utility of Diagnostic Tests in Trigeminal Neuropathy. Mayo Clin Proc. 2022 Jul;97(7):1318-1325.
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