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Related Experiment Videos

Palatal myoclonus: an unusual presentation.

Shelly Ross1, Joseph Jankovic

  • 1Parkinson's Disease Center and Movement Disorders Clinic, Department of Neurology, Baylor College of Medicine, Houston, Texas 77030, USA.

Movement Disorders : Official Journal of the Movement Disorder Society
|June 2, 2005
PubMed
Summary

A rare case of palatal myoclonus in a teen presents with unique double contractions during breathing after an infection. This finding expands understanding of palatal myoclonus symptoms.

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Area of Science:

  • Neurology
  • Otolaryngology

Background:

  • Palatal myoclonus (PM) is an uncommon condition characterized by rhythmic contractions of the soft palate.
  • Typically, PM is associated with lesions in the brainstem or cerebellum and presents with single contractions.

Observation:

  • This report details a 16-year-old female with an unusual presentation of palatal myoclonus.
  • The onset followed a severe upper respiratory infection.
  • The patient exhibited unique rhythmic contractions of the oropharynx, larynx, and esophagus occurring in couplets.

Findings:

  • The contractions were exclusively observed during the inspiratory phase of respiration.
  • Diagnostic imaging and studies ruled out cerebellar or brainstem pathology.
  • This presentation deviates from the typical single contractions seen in essential palatal myoclonus.

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Implications:

  • This case expands the known clinical spectrum of palatal myoclonus.
  • It highlights the potential for post-infectious onset and atypical contraction patterns.
  • The findings suggest an occasional overlap between essential and symptomatic palatal myoclonus phenotypes.