Session Information
Date: Thursday, June 23, 2016
Session Title: Dystonia
Session Time: 12:00pm-1:30pm
Location: Exhibit Hall located in Hall B, Level 2
Objective: Our aim is to report atypical types of psychogenic movement disorder presenting jaw-opening dystonia.
Background: Jaw-opening dystonia is a rare condition, and only a limited number of cases have been reported in the literature. Dystonia is rarely psychogenic and jaw-opening dystonia is extremely rare.
Methods: Two cases reports and description of clinical characteristics.
Results: We report two patients with clinically established psychogenic dystonia. Patient 1 is a female that presented sudden-onset, involuntary opening of mouth one day ago. She developed clinically non-fixed, continual jaw-opening dystonia and hypertonia of jaw and mouth disappeared with distraction. Psychological examination showed severe stressful condition and depression. Patient 2 is a female that presented with involuntary opening of mouth and irregular limb tremors at post-natal state after delivery. She also developed clinically similar type of jaw-opening dystonia, which disappeared with distraction. Psychological examination showed postpartum depression.
Conclusions: To our knowledge, this is the first case report of psychogenic jaw opening dystonia. As like these cases, if there is abrupt-onset, not-fixed, continual jaw-opening dystonia with clinically inconsistent and incongruous characteristics, it should be considered diagnosis of psychogenic jaw-opening dystonia.
XXI World Congress on Parkinson’s disease and Related Disorders (IAPRD 6-9 December, 2015, Milan, Italy).
To cite this abstract in AMA style:
W.T. Yoon. Atypical presentation of psychogenic movement disorder with jaw-opening dystonia: Two cases reports [abstract]. Mov Disord. 2016; 31 (suppl 2). https://www.mdsabstracts.org/abstract/atypical-presentation-of-psychogenic-movement-disorder-with-jaw-opening-dystonia-two-cases-reports/. Accessed December 9, 2024.« Back to 2016 International Congress
MDS Abstracts - https://www.mdsabstracts.org/abstract/atypical-presentation-of-psychogenic-movement-disorder-with-jaw-opening-dystonia-two-cases-reports/