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Non-communicating intramuscular ganglia
1Department of Clinical Radiology, Royal Infirmary, Edinburgh, UK.
European Radiology
|December 29, 1998
Summary
Intramuscular ganglia, rare joint-unconnected masses, present unique imaging characteristics. Magnetic resonance and ultrasound reveal distinct features aiding diagnosis of these unusual lesions.
Area of Science:
- Radiology
- Musculoskeletal Imaging
- Pathology
Background:
- Intramuscular ganglia are uncommon cystic masses.
- Most reported cases involve connections to adjacent joints.
- Diagnosis often relies on imaging characteristics.
Observation:
- Presents imaging findings in three patients with intramuscular ganglia.
- Ganglia were not connected to any adjacent joint.
- Described imaging features across multiple modalities.
Findings:
- Magnetic resonance imaging (MRI) revealed septated, encapsulated masses.
- On MRI, lesions were isointense or hypointense on T1-weighted images.
- On MRI, lesions were hyperintense on T2-weighted images.
- Post-contrast T1-weighted MRI showed minimal capsular enhancement in one case.
- Ultrasound demonstrated an encapsulated, anechoic mass.
Implications:
- Highlights imaging features of joint-unconnected intramuscular ganglia.
- Distinguishes these rare masses from other intramuscular lesions.
- Aids radiologists in accurate diagnosis and characterization.