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Intraspinal synovial cysts. Magnetic resonance evaluation
W T Yuh1, J M Drew, J N Weinstein
1Department of Radiology, University of Iowa College of Medicine, Iowa City.
Spine
|July 1, 1991
Summary
Contrast-enhanced MRI helps diagnose intraspinal synovial cysts by showing solid and cystic parts, their enhancement patterns, and potential joint connections. This imaging technique offers valuable diagnostic information beyond standard MRI.
Area of Science:
- Radiology
- Neuroimaging
- Spinal Imaging
Background:
- Intraspinal synovial cysts are rare lesions that can cause neurological symptoms.
- Accurate diagnosis is crucial for appropriate management and treatment planning.
Purpose of the Study:
- To evaluate the utility of contrast-enhanced magnetic resonance imaging (MRI) in characterizing intraspinal synovial cysts.
- To identify key imaging features that aid in the definitive diagnosis of these cysts.
Main Methods:
- Retrospective review of five intraspinal synovial cysts in four patients.
- Comparison of noncontrast MRI with contrast-enhanced MRI using gadolinium diethylenetriaminepentaacetic acid.
- Analysis of imaging findings including cyst components, enhancement patterns, and relationship to adjacent structures.
Main Results:
- Contrast-enhanced MRI demonstrated solid and cystic components, early and delayed enhancement of the cyst and its periphery, and persistent enhancement of the solid component and capsule.
- Enhancement of the apophyseal joint and a potential connection between the cyst and the joint were identified.
- Findings suggest contrast-enhanced MRI provides additional diagnostic information compared to noncontrast techniques.
Conclusions:
- Contrast-enhanced MRI is a valuable tool for the definitive diagnosis of intraspinal synovial cysts.
- Specific enhancement patterns and visualization of cyst-joint communication aid in diagnosis.
- This technique complements computed tomography (CT) findings, offering enhanced diagnostic capabilities.