13 year-old with abrupt onset of left facial weakness

T1 coronals post Gad                                                                                                

T1 coronals post Gad

T1 axial post Gad


Enhancement of the left CN VII. Specifically the distal canalicular, the labyrinthine, the tympanic, and the mastoid segments enhance.


Bell's palsy, atypical schwanomma


Bell's palsy


Thin-section contrast-enhanced MR scans are recommended for individuals with atypical presentation of facial paralysis. In the proper clinical setting, contrast-enhanced MR imaging may permit a positive radiographic diagnosis of Bell's palsy, which has previously been a diagnosis of exclusion.

Submitted by Anthony Giauque, MD, UW Neuroradiology Fellow

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