Re-Emergent Tongue and Jaw Tremors in Parkinson's Disease: A New Case Series and Review

Strategic Insights -

In a recent study, researchers at Juntendo University have identified two cases of re-emergent tremors involving the tongue in patients with Parkinson's disease (PD). This report highlights the recognition of re-emergent tremors in the facial regions as potential manifestations of PD, emphasizing the need for more comprehensive and standardized assessment protocols for neurological examinations. The study sheds new light on the clinical significance of these tremors and their implications for patients with PD.

Key Takeaways:

  • The study reports two cases of re-emergent tremors involving the tongue in patients with PD, highlighting the need for more comprehensive and standardized assessment protocols for neurological examinations.
  • The frequency and latency of tongue and jaw re-emergent tremors were similar to those observed in upper limb tremors, suggesting a shared underlying mechanism.
  • The study identified five previous case reports of re-emergent tremors of the tongue and jaw lip in patients with PD, with the tongue being the most commonly involved site.
  • The researchers emphasize the importance of recognizing re-emergent tremors in the facial regions as potential manifestations of PD, which can aid in the diagnosis and management of the disease.

Statistics:

  • 2 patients with PD exhibited re-emergent tremors involving the tongue, with a latency of 3-4 seconds after tongue protrusion.
  • The frequency of tongue and jaw re-emergent tremors was similar to that observed in upper limb tremors, with 3-5 Hz frequency.
  • 5 previous case reports of re-emergent tremors of the tongue and jaw lip in patients with PD were identified in the literature.
  • The study highlights the need for more comprehensive and standardized assessment protocols for neurological examinations, including the recognition of re-emergent tremors in the facial regions.

Sources:

  • Re-Emergent Tongue and Jaw Tremor in Parkinson's Disease: A Case Series and a Literature Review. Movement Disorders Clinical Practice, 2025.
  • Juntendo University, Dept. of Neurology, Faculty of Medicine.
  • Isamu Takai, Dept. of Neurology, Faculty of Medicine, Juntendo University, Tokyo, Japan.
  • Wiley, 111 River St, Hoboken 07030-5774, NJ, USA.