Facial nerve: Anatomy & Pathology
- Idiopathic but usually follows a viral infection
- Usually self-limited
Ramsey Hunt syndrome - herpes zoster oticus
Imaging - gadolinium enhancement of the 7th nerve
CAUTION: The geniculate ganglion & post-ganglionic nerve segment normally exhibit mild enhancement. Also, the stylomastoid canal contains a vascular plexus that enhances.