Introduction
PFP, neuritis, nerve neuritis
NEURITIS, PERIPHERAL FACIAL PALSY, SECONDARY
Peripheral facial palsy (PFP) is a common condition that affects 15 of 100 000 people per year.In patients with BP, gadolinium-enhanced magnetic resonance imaging (MRI) of the facial nerve may reveal isolated neuritis of the facial nerve, seen as nonnodular contrast enhancement with no other associated abnormality, particularly in the cerebrum. This asymmetric enhancement (≥1 portion of the contralateral facial nerve may be slightly enhancedThe main objective of this study was to estimate the proportion of adult patients in whom MRI led to correction of an initial clinical diagnosis of BP. The secondary objective was to determine the proportion of patients with confirmed BP who had MRI evidence of facial nerve neuritis without secondary lesions. A third objective was to identify factors associated with secondary (nonidiopathic) PFP at initial presentation and after 1 month.