What is inclusion body myositis?

Updated: Jan 05, 2021
  • Author: Mythili Seetharaman, MD; Chief Editor: Herbert S Diamond, MD  more...
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This condition is a slowly progressive, idiopathic, inflammatory myopathy that mostly affects men older than age 50 years. Muscle involvement predominantly includes proximal muscles but may also include distal muscles (50%), and involvement may be asymmetrical. Dysphagia is found in most patients (60%).

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