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Synovial cysts of the lumbar spine: CT and MRI correlations
Authors:P. Reginster  J. Collignon  R. F. Dondelinger
Affiliation:(1) Department of Medical Imaging, University Hospital Sart Tilman B 35, B-4000 Liège, Belgium
Abstract:
Intraspinal synovial cysts were diagnosed in six patients during a 5-year period and retrospectively studied. Plain films of the lumbar spine showed degenerative changes in all patients. Lumbar myelography showed a posterior and lateral defect caused by extradural compression. Using CT without constrast enhancement established the diagnosis in five of the six-patients. in four cases MRI was performed, three before and after injection of gadolinium diethyline-triamine penta-acetic acid )Gd-DTPA). Including the patient with a false negative CT, MRI was positive in all patients.
Keywords:Spine  Synovial cysts  CT  MRI  Gadolinium
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