Incidence of Underlying Abnormal Findings on Routine Magnetic Resonance Imaging for Bell Palsy
Authors:
Open Access
- 3 April 2023
- journal article
- research article
- Published by American Medical Association (AMA) in JAMA Network Open
- Vol. 6 (4) , e239158
Abstract
Peripheral facial palsy (PFP) is a common condition that affects 15 of 100 000 people per year.1 Idiopathic PFP, or Bell palsy (BP), is the most common PFP, accounting for 75% of cases, but PFP can also be caused by a variety of diseases.2 The main pathophysiological explanation for BP is postherpetic neuritis of the facial nerve.3 This cause is suggested by the absence of clinical or laboratory evidence of other possible causes.4 In most of these cases (85%), symptoms regress within a few weeks.4Keywords
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