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A 46-Year-Old Man with Double Vision and Proximal Leg Weakness 

A 46-Year-Old Man with Double Vision and Proximal Leg Weakness
Chapter:
A 46-Year-Old Man with Double Vision and Proximal Leg Weakness
Author(s):

Jeffrey A. Cohen

, Justin J. Mowchun

, Victoria H. Lawson

, and Nathaniel M. Robbins

DOI:
10.1093/med/9780190491901.003.0033
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date: 26 January 2021

Lambert-Eaton myasthenic syndrome (LEMS) can be a difficult condition to diagnose. In this chapter, the clinical picture and characteristics are discussed. The pathophysiology is also reviewed. Features to distinguish LEMS from more common neuromuscular junction conditions such as myasthenia gravis are reviewed. We review features that distinguish between idiopathic and paraneoplastic forms, and we discuss the importance of tumor surveillance. Antibody testing and the correct electrodiagnostic strategy are presented. Treatment of LEMS is outlined.

Lambert-Eaton syndrome (LES) is a difficult condition to diagnose. The unique clinical picture and its characteristics are discussed. This is especially true in the patient without a diagnois of cancer. Antibody testing and the correct electrodiagnostic strategy are presented. Treatment of LES is outlined.

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