Myositis ossificans

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What is myositis ossificans?

Myositis ossificans (MO) is a benign pseudotumor developing in muscles. It develops as a painful, tender, enlarging mass and can sometimes be mistaken for a soft tissue tumor. MO can be caused by trauma but may have no identifiable cause. Treatment is typically surgical removal of the tumor.

Common symptoms reported by people with myositis ossificans

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Treatments taken by people with myositis ossificans

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Compare treatments taken by people with myositis ossificans

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Who has myositis ossificans on PatientsLikeMe?


Age at first symptom
Age at first symptom Proportion # of patients
0-19 years 0
20-29 years 0
30-39 years 0
40-49 years 0
50-59 years 0
60-69 years 0
70+ years 0

Diagnosis status
Diagnosis status Proportion # of patients
Diagnosed 0
Not Diagnosed 0

These charts show data from myositis ossificans patients who have completed their condition history
Last updated:

Let’s build this page together! When you share what it’s like to have myositis ossificans through your profile, those stories and data appear here too.

Got a question about living with myositis ossificans? Members in the forum might have the answers.