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Eosinophilic Myositis

  • Albert Selva-O’ Callaghan
  • Josep M. Grau

Abstract

Eosinophilic myositis (EM) constitutes a group of rare, clinically and pathologically heterogeneous disorders characterized by eosinophil infiltration of skeletal muscle. Parasitic infection is the commonest cause worldwide, but it can also be a feature of other conditions such as hypereosinophilic syndrome or muscle dystrophies. Most cases have no known etiological factor and are considered as idiopathic. EM should be distinguished from dermatomyositis and other systemic diseases such as Churg-Strauss granulomatosis. Idiopathic EM can be classified into three subtypes: focal EM, eosinophilic polymyositis, and eosinophilic perimyositis. Pathological studies are mandatory to differentiate and diagnose these entities.

Keywords

Eosinophilic polymyositis perimyositis focal eosinophilic myositis 

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Copyright information

© Humana Press, a part of Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Albert Selva-O’ Callaghan
    • 1
  • Josep M. Grau
    • 2
  1. 1.Internal Medicine Department, Hospital Vall d’HebrónUniversitat Autónoma de BarcelonaBarcelonaSpain
  2. 2.Department of Internal Medicine, Muscular Research Group, Hospital ClínicUniversity of BarcelonaBarcelonaSpain

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