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Inclusion body myositis (IBM)
Inclusion body myositis (IBM) is an inflammatory muscle disease. It is the most common muscle disease in patients over the age of 50. Patients with IBM experience muscle weakness and muscle wasting that slowly gets worse over time. The thigh muscles (quadriceps) and muscles in the fingers, wrists, and forearms are often most affected. Many patients also have difficulties swallowing. Over time, patients lose their mobility and have trouble completing everyday activities. There is currently no cure for IBM.