J Korean Neurol Assoc.  2010 Feb;28(1):50-52.

Lambert-Eaton Myasthenic Syndrome (LEMS) Presented With Ocular Symptoms

Affiliations
  • 1Department of Neurology, Catholic University of Daegu, School of Medicine, Daegu, Korea. jihelpgod@cu.ac.kr
  • 2Department of Ophthalmology, Catholic University of Daegu, School of Medicine, Daegu, Korea.

Abstract

Lambert-Eaton myasthenic syndrome (LEMS) is characterized clinically by fluctuating muscular weakness; presentation with ocular symptoms is unusual. A 60-year-old man had developed diplopia and ptosis 2 years previously. The findings of a neurologic examination were normal except for bilateral ptosis and ophthalmoplegia. The amplitude of compound muscle action potentials recorded on the abductor digiti minimi increased (by more than 500%) during 50-Hz stimulation. This case demonstrates that LEMS should be included in the differential diagnosis of myasthenic symptom confined to the ocular muscles.

Keyword

Lambert-Eaton Myasthenic Syndrome; Diplopia; Ptosis

MeSH Terms

Action Potentials
Diagnosis, Differential
Diplopia
Humans
Lambert-Eaton Myasthenic Syndrome
Middle Aged
Muscles
Neurologic Examination
Ophthalmoplegia
Full Text Links
  • JKNA
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
Copyright © 2024 by Korean Association of Medical Journal Editors. All rights reserved.     E-mail: koreamed@kamje.or.kr