What is it?

An inclusion body myositis is a rare condition that damages and weakens muscles.
In muscle biopsies of patients with IBM, inclusion bodies can be seen as abnormal structures in muscle cells. Inclusion bodies distinguish this type of myositis from similar conditions such as polymyositis.

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Additional names

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Signs & symptoms

The symptoms of IBM vary, but they are usually characterized by a progressive weakness of the hand, forearm, thigh, and lower leg muscles.
Symptoms are not always present or equally felt on both sides of the body.


The diagnosis of IBM can be challenging due to the fact that the symptoms are not exclusive to this condition. It is often necessary to perform a muscle biopsy in order to narrow down the diagnosis of the condition.


It's important to note that there is no effective treatment for IBM, but a combination of medication and rehabilitation therapy can be beneficial for many patients.
It is possible to manage swallowing problems through speech-language therapy.

☝️ This is not a substitute for professional medical advice. Please consult with your physician before making any medical decision.

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