How are polymyositis and inclusion body myositis differentiated?

Updated: Feb 12, 2018
  • Author: Mythili Seetharaman, MD; Chief Editor: Herbert S Diamond, MD  more...
  • Print
Answer

Although classified as an inflammatory myopathy, inclusion body myositis shows minimal evidence of inflammation. This is the most common inflammatory myopathy in patients older than age 50 years. It more commonly presents as asymmetrical, distal weakness and also has distinct biopsy findings. Studies so far have yielded less favorable results than treatment for polymyositis and dermatomyositis. (See Treatment and Medication.)


Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!