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Proliferative myositis: value of imaging
Konstantinos Pagonidis1, Maria Raissaki, Nicholas Gourtsoyiannis
1From the Department of Radiology, University Hospital of Heraklion, Stavrakia, Iraklion, Crete, Greece. kpagonidis@yahoo.de
Journal of Computer Assisted Tomography
|January 25, 2005
Summary
Imaging can help diagnose proliferative myositis, a rare muscle condition. Ultrasound and MRI findings in a patient suggest this diagnosis, potentially avoiding unnecessary surgery.
Area of Science:
- Musculoskeletal Imaging
- Radiology
- Pathology
Background:
- Proliferative myositis is a rare, benign soft-tissue tumor that can mimic malignant neoplasms.
- Accurate diagnosis is crucial to avoid aggressive or unnecessary surgical interventions.
Observation:
- A 52-year-old woman with confirmed proliferative myositis presented with imaging findings.
- Ultrasound (US) demonstrated preserved muscle bundles with patchy hyperechogenicity and hypoechoic lines.
- Magnetic Resonance Imaging (MRI) revealed ill-defined, hyperintense intramuscular lesions with isointense lines on T2-weighted sequences.
Findings:
- MRI showed subtotal lesion enhancement, a nonenhancing geometrical web pattern, and fascial enhancement.
- These imaging characteristics, when correlated, can suggest proliferative myositis.
Implications:
- Combined US and MRI findings may aid in the early diagnosis of proliferative myositis.
- Accurate imaging correlation can guide towards biopsy and potentially prevent unnecessary, disfiguring surgeries for painful, growing masses.