A novel movement disorder of the lower lip

Kleopas A. Kleopas, Theodoros Kyriakides

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Four patients, aged 25 to 42 years presented with acute onset of a movement disorder characterized by a tonic, sustained, lateral and outward protrusion of one half of the lower lip. The movement disorder was present at rest, while in some patients, it was also present during speech. In all cases, the abnormal lip posture could be suppressed voluntarily. Neurological examination was otherwise normal. Extensive laboratory investigation failed to reveal any causative factors for secondary focal dystonia. Treatment with oral medications and botulinum toxin was mostly ineffective. Spontaneous remissions were frequent.

Original languageEnglish
Pages (from-to)663-704
Number of pages42
JournalMovement Disorders
Issue number6
Publication statusPublished - Jun 2004


  • Dystonia at rest
  • Headache
  • Lower lip dystonia


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