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Post-traumatic spinal synovial cyst with spondylolysis: CT features
E E Awwad1, M Sundaram, R D Bucholz
1Department of Radiology, St. Louis University Medical Center, MO 63104.
Journal of Computer Assisted Tomography
|March 1, 1989
Summary
Spinal synovial cysts can mimic tumors on CT scans. Bilateral L3 spondylolysis can indicate a mobile posterior arch and synovial herniation, confirmed by surgery.
Area of Science:
- Neurosurgery
- Radiology
- Spinal Imaging
Background:
- Spinal synovial cysts are rare, often presenting with neurological deficits.
- Diagnostic imaging like CT and myelography are crucial for identifying spinal pathologies.
- Differentiating cysts from tumors is critical for appropriate treatment planning.
Observation:
- A spinal synovial cyst at the L2-L3 level caused myelographic obstruction.
- Computed Tomography (CT) imaging suggested an intraspinal tumor.
- CT also revealed bilateral spondylolysis of L3, indicating a potential mobile posterior arch.
Findings:
- The combination of imaging findings suggested synovial herniation associated with the mobile L3 posterior arch.
- Surgical exploration confirmed the presence of a spinal synovial cyst.
- The cyst was causing significant spinal canal compromise.
Implications:
- This case highlights the importance of considering spinal synovial cysts in the differential diagnosis of intraspinal masses.
- Recognizing associated bony abnormalities like spondylolysis can aid in diagnosing mobile posterior arch cysts.
- Accurate diagnosis through advanced imaging and surgical confirmation is vital for effective management of spinal pathologies.