Diferencia entre revisiones de «Facial paralysis»
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==Background== | ==Background== | ||
*Key to distinguish between central and peripheral cause of facial nerve palsy | |||
*Central | |||
**CVA | |||
*Peripheral | |||
**Idiopathic (Bell's palsy) | |||
**Lyme disease | |||
**Varicella zoster | |||
**HSV | |||
**Facial trauma | |||
==Clinical Features== | ==Clinical Features== | ||
Revisión del 02:13 21 sep 2018
Background
- Key to distinguish between central and peripheral cause of facial nerve palsy
- Central
- CVA
- Peripheral
- Idiopathic (Bell's palsy)
- Lyme disease
- Varicella zoster
- HSV
- Facial trauma
Clinical Features
Central Process
- Forehead "sparing" or normal muscle tone of the forehead
Peripheral Process
- Weakness of forehead muscles
Central and Peripheral
- Unable to close eye
- Loss of nasolabial fold
- Asymmetric smile
Differential Diagnosis
Facial paralysis
- Bell's palsy
- CVA
- Trigeminal neuralgia
- Tick paralysis
- Herpes zoster oticus (Ramsay Hunt syndrome)
- CNS tumor
- Acoustic neuroma or other cerebellopontine angle lesions
- Meningioma
- Cerebellar pontine angle
- Facial nerve schwannoma
- Parotid
- Sarcoma
- Anesthesia nerve blocks
- Cerebral Aneurysms (vertebral, basilar, or carotid)
Evaluation
Management
Central Process
- CT
Peripheral Process
- No labs or imaging routinely necessary
- Consider lyme serologies if endemic area