Causes of Facial Paralysis

Etiology of Facial Nerve Disorders

Facial nerve disorders present with a variety of different functional and aesthetic problems such as facial nerve paralysis, synkinesis, and hemifacial spasm.

There are numerous causes of facial nerve paralysis (see table 1). The most common causes include Bell’s palsy, acoustic neuroma, trauma and parotid cancer. In this section you can click on each of the etiologies that you are interested in and get more information.

Bell’s Palsy
  • Also known as idiopathic facial paralysis, Bell's Palsy is thought to be caused by the reactivation of the herpes simplex virus resulting in inflamation oe swelling of the nerve.
  • Must Rule Out Other Causes Of Facial Paralysis
Trauma
  • Trauma to the bony canal behind the ear known as temporal bone fracture can result in facial paralysis.
  • Injury can also occur from laceration or surgery to facial nerve in the facial region.
Tumor
  • Cerebellopontine Angle Tumors: Acoustic Neuromas, Meningioma
  • Parotid Cancer: Pleomorphic Adenoma, Squamous Cell Carcinoma, Adenoid Cystic Carcinoma, Adenocarcinoma, Mucoepidermoid Carcinoma
  • Head & Neck Tumors
Metabolic
  • Diabetes Mellitus
  • Hyperthyroidism
  • Pregnancy
  • Hypertension
  • Vitamin A Deficiency
Neurologic
  • Opercular Syndrome: Cortical Lesion In Facial Motor Area
  • Millard-Gubler Syndrome
Melkersson-Rosenthal Syndrome
  • Recurrent Alternating FNP
  • Furrowed Tongue
  • Faciolabial Edema
Toxic
  • Thalidomide
  • Ethylene Glycol
  • Alcoholism
  • Arsenic Intoxication
  • Tetanus
  • Diptheria
Congenital
  • Myotonic Dystrophia
  • Moebius Syndrome
  • Hemifacial Microsomia

 

BELL'S PALSY

ACOUSTIC NEUROMA

PAROTID TUMOR

SYNKINESIS

FACELIFT SURGERY

NERVE INJURY

MOBIUS SYNDROME

HEMIFACIAL MICROSMIA

PAROTID

HEMIFACIAL SPASM

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MASSETERIC-FACIAL NERVE

BABAK AZIZZADEH, MD FACS
Director, The Facial Paralysis Institute - Associate Clinical Professor - Facial Plastic & Reconstructive Surgery David Geffen School of Medicine at UCLA

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FACIAL NERVE TEXTBOOK

FACIAL NERVE TEXTBOOK

Dr. Azizzadeh’s facial nerve textbook is the preeminent textbook for doctors on the subject.