Table 1.

Disorders of the facial nerve.

Infectious	Acute OM
	Chronic OM
	Cholesteatoma
	Herpes zoster oticus
	Lyme disease
Traumatic	Temporal bone fracture
	Iatrogenic injury
	Avulsion at brainstem
	Penetrating trauma
Neoplastic	Facial schwannoma
	Vestibular schwannoma
	Hemangioma
	Lipoma
	Glomus tumors
	Malignancy of skin/parotid
Congenital	Moebius syndrome
	Displacement (atresia)
	Aural atresia
	CHARGE syndrome
	Dehiscence of FC
Vascular	MCA infarct
	Pontine artery infarct
	Lacunar infarct
Idiopathic	Bell's palsy
	Multiple sclerosis
	Sarcoidosis
Inflammatory	Guillain-Barre

OM: otitis media; FC: fallopian canal; and MCA: middle cerebral artery.