Podcast
Questions and Answers
Myositis ossificans typically occurs in older, sedentary individuals.
Myositis ossificans typically occurs in older, sedentary individuals.
False
A key feature of myositis ossificans is the erosion of the underlying cortex of the bone.
A key feature of myositis ossificans is the erosion of the underlying cortex of the bone.
False
Myositis ossificans can be identified by the presence of a mass of calcified soft tissue.
Myositis ossificans can be identified by the presence of a mass of calcified soft tissue.
True
The string sign in myositis ossificans indicates a complete separation of the mass from the bone.
The string sign in myositis ossificans indicates a complete separation of the mass from the bone.
Signup and view all the answers
Myositis ossificans and parosteal osteosarcoma both exhibit the string sign.
Myositis ossificans and parosteal osteosarcoma both exhibit the string sign.
Signup and view all the answers
Study Notes
Myositis Ossificans
- Trauma leads to muscle haemorrhage and necrosis.
- Calcification results from this damage, persisting sometimes long-term.
- Large muscles are more susceptible.
- Typically affects young, active adolescents.
- Presents as a calcified soft tissue mass near the injury.
- May or may not show a periosteal reaction.
- Crucial distinction: No underlying cortical erosion, unlike malignant fibrous histiocytoma.
- "String sign" indicates a plane of normal tissue completely separating the mass from the bone.
- This distinguishes it from parosteal osteosarcoma, where the plane isn't always continuous.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz focuses on the pathophysiology and key characteristics of myositis ossificans, a condition arising from trauma-induced muscle damage and calcification. It highlights the presentation, radiological features, and distinctions from similar bone tumors. Perfect for students of sports medicine and orthopedics.
