Contents

SynopsisCodesLook ForDiagnostic PearlsDifferential Diagnosis & PitfallsBest TestsManagement PearlsTherapyDrug Reaction DataReferences
Oromandibular dystonia
Other Resources UpToDate PubMed

Oromandibular dystonia

Contributors: Jamie Adams MD, Richard L. Barbano MD, PhD
Other Resources UpToDate PubMed

Synopsis

Oromandibular dystonia is a type of focal dystonia characterized by involuntary spasms of the jaw. The jaw can be pulled down (jaw-opening dystonia), pulled closed (jaw-clenching dystonia), and/or moved laterally. It is sometimes accompanied by lingual dystonia with abnormal movements of the tongue. Typical symptoms include difficulty opening the mouth, clenching or grinding of the teeth, jaw movements or pain, chin thrusting, tongue protrusion, lip pursing, or platysma contraction. In some cases, symptoms may only appear with action. Symptoms can result in difficulty speaking, chewing, or swallowing.

It may be associated with blepharospasm, cervical dystonia, and/or spasmodic dysphonia. The cause is unknown, although these movements may occur in the setting of tardive syndrome as a result of dopamine-blocking medications. Peak onset of symptoms occurs at 50-60 years of age. The condition is rare and more common in women than in men. There is no cure.

Codes

ICD10CM:
G24.4 – Idiopathic orofacial dystonia

SNOMEDCT:
230328001 – Isolated oromandibular dystonia

Look For

Subscription Required

Diagnostic Pearls

Subscription Required

Differential Diagnosis & Pitfalls

To perform a comparison, select diagnoses from the classic differential

Subscription Required

Best Tests

Subscription Required

Management Pearls

Subscription Required

Therapy

Subscription Required

Drug Reaction Data

Subscription Required

References

Subscription Required

Last Reviewed:08/12/2019
Last Updated:08/29/2019
Copyright © 2024 VisualDx®. All rights reserved.
Oromandibular dystonia
Print  
A medical illustration showing key findings of Oromandibular dystonia
Copyright © 2024 VisualDx®. All rights reserved.