Asymmetrical ventricular enlargement in Parkinson's disease

Xuemei Huang, Yueh Z. Lee, Martin McKeown, Guido Gerig, Hongbin Gu, Phd Weill Lin, Mechelle M. Lewis, Sutapa Ford, Alexander I. Tröster, Daniel R. Weinberger, Martin Styner

Research output: Contribution to journalArticlepeer-review


Parkinson's disease (PD) typically manifests with asymmetric motor symptom onset. Ventricular enlargement, a nonspecific measure of brain atrophy, has been associated with cognitive decline in PD, but not with motor symptom asymmetry. Asymmetrical ventricular enlargement on magnetic resonance images was explored in a monozygotic twin pair discordant for PD and in nine healthy monozygotic twin pairs. The left-right lateral ventricular volumetric difference of the PD-twin was greater than that of his twin and all other healthy twins, with the larger ventricle observed contralateral to the more symptomatic side. Moreover, the lateral ventricle asymmetry difference between twin pairs was significantly higher for the discordant PD-twin pair than for the healthy twin pairs. This is the first report to suggest the presence of asymmetrical ventricular enlargement in PD, findings that may be worthy of further study.

Original languageEnglish (US)
Pages (from-to)1657-1660
Number of pages4
JournalMovement Disorders
Issue number11
StatePublished - Aug 15 2007


  • Motor impairment
  • Parkinson's disease
  • Ventricle
  • Volume asymmetry

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology


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