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MR imaging of myotendinous strain
W E Palmer1, S J Kuong, H M Elmadbouh
1Bone and Joint Radiology, Massachusetts General Hospital, Wang Ambulatory Care Center, Boston 02114, USA.
AJR. American Journal of Roentgenology
|September 2, 1999
Summary
Magnetic Resonance (MR) imaging is key for diagnosing myotendinous strain, especially when symptoms lack exercise correlation. It helps differentiate strain from other myotendinous unit disorders, unlike myositis ossificans which requires biopsy due to varied MR appearances.
Area of Science:
- Musculoskeletal Radiology
- Diagnostic Imaging
- Orthopedic Pathology
Background:
- Myotendinous strain presents characteristic MR imaging findings.
- Distinguishing strain from other myotendinous unit disorders can be challenging.
- Myositis ossificans has nonspecific MR appearances that can mimic neoplasms.
Purpose of the Study:
- To highlight the diagnostic value of MR imaging in myotendinous strain.
- To differentiate strain injury from other myotendinous pathologies using MR imaging.
- To compare MR features of strain injury with myositis ossificans.
Main Methods:
- Review of MR imaging features of myotendinous strain.
- Analysis of MR imaging in cases lacking clear temporal correlation with exercise.
- Comparison of MR imaging findings in myotendinous strain versus myositis ossificans.
Main Results:
- Myotendinous strain demonstrates pathognomonic MR imaging features.
- MR imaging is valuable for distinguishing strain when symptoms lack exercise correlation.
- Myositis ossificans shows variable, nonspecific MR appearances, potentially simulating neoplasm.
Conclusions:
- MR imaging is a crucial tool for diagnosing myotendinous strain, particularly in atypical presentations.
- MR imaging aids in differentiating strain injury from other myotendinous disorders.
- Myositis ossificans requires biopsy due to its nonspecific and variable MR imaging characteristics.