CLINICAL-CAUSES OF UNILATERAL FACIAL PALSY

SUMMARY

UMN lesions:
1. Any frontal lobe lesions (tumor, stroke, trauma).

LMN lesions:
1. Pontine lesions: syringobulbia, tumors, vascular lesions, MS.
2. CP angle: tumors (acoustic neuroma, meningioma), meningitis.
3. Petrous temporal bone: Bell's palsy (most common, >80%), fracture, meningioma, Ramsay-Hunt syndrome, otitis media.
4. Parotid: tumor, sarcoidosis.

Reference(s)

Wilkinson, I., Furmedge, D. and Sinharay, R. (2017). Oxford handbook of clinical medicine. Oxford: Oxford University Press. Get it on Amazon.
Feather, A., Randall, D. and Waterhouse, M. (2020). Kumar And Clark’s Clinical Medicine. 10th ed. S.L.: Elsevier Health Sciences. Get it on Amazon.
Hannaman, R. A., Bullock, L., Hatchell, C. A., & Yoffe, M. (2016). Internal medicine review core curriculum, 2017-2018. CO Springs, CO: MedStudy.
Therapeutic Guidelines. Melbourne: Therapeutic Guidelines Limited. https://www.tg.org.au [Accessed 2021].