Myositis
Myositis is an inflammation or swelling of the muscles. It is most often caused by injury, infection, medicines, or an autoimmune disorder.
Autoimmune disorder
An autoimmune disorder occurs when the body's immune system attacks and destroys healthy body tissue by mistake. There are more than 80 autoimmune d...
Read Article Now Book Mark ArticleDermatomyositis and polymyositis are related topics.
Dermatomyositis
Dermatomyositis is a disease that involves muscle inflammation and a skin rash. Polymyositis is a similar inflammatory condition that also involves ...
Read Article Now Book Mark ArticlePolymyositis
Polymyositis and dermatomyositis are rare inflammatory diseases. These diseases lead to muscle weakness, swelling, tenderness, and tissue damage. T...
Read Article Now Book Mark ArticleReviewed By
Linda J. Vorvick, MD, Clinical Professor Emeritus, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
Doughty CT, Amato AA. Disorders of the skeletal muscle. In: Jankovic J, Mazziotta JC, Pomeroy SL, Newman NJ, eds. Bradley and Daroff's Neurology in Clinical Practice. 8th ed. Philadelphia, PA: Elsevier Inc; 2022:chap 109.
Selcen D. Muscle diseases. In: Goldman L, Cooney KA, eds. Goldman- Cecil Medicine. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 389.
Taber's Cyclopedic Medical Dictionary. 24th ed. Philadelphia, PA: F.A. Davis Company; 2021. Myositis. www.tabers.com/tabersonline/view/Tabers-Dictionary/729759/all/myositis. Accessed March 31, 2025.
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