Essential tremor associated with focal nonnigral Lewy bodies: A clinicopathologic study

Elan D. Louis, Lawrence S. Honig, Jean Paul G. Vonsattel, Demetrius M. Maraganore, Sarah Borden, Carol B. Moskowitz

Research output: Contribution to journalArticlepeer-review

104 Scopus citations

Abstract

Background: Essential tremor is one of the most common neurological diseases. Its links with Parkinson disease (PD) are often debated. There have been few published postmortem studies. Objective: To study our first case of essential tremor through the recently established Essential Tremor Centralized Brain Repository. Design: Report of a case of a patient with a diagnosis of severe essential tremor for 46 years who exhibited no signs of parkinsonism. Results: On postmortem examination, gross brain sections showed no abnormalities. Results of microscopic examination of hematoxylin-eosin-stained sections revealed that the locus coeruleus contained multiple Lewy bodies (LBs), although none were found in the substantia nigra, dorsal vagal nuclei, thalamus, substantia innominata, inferior olivary nucleus, or cerebellum. Immunochemical staining using antibodies directed against α-synuclein confirmed the presence of many LBs in the locus ceruleus and showed rare LBs in the substantia innominata and dorsal vagal nuclei. There were no LBs in the substantia nigra. Conclusions: Our patient had a very focal presence of LBs in the locus ceruleus, an anatomically restricted form of LB disease. This study provides support for the link between essential tremor and LB disease and raises the question as to what proportion of patients with essential tremor might have unusual forms of LB disease.

Original languageEnglish (US)
Pages (from-to)1004-1007
Number of pages4
JournalArchives of neurology
Volume62
Issue number6
DOIs
StatePublished - Jun 2005
Externally publishedYes

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Clinical Neurology

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