Lumbar Intraspinal Synovial Cyst: Case Report

ABSTRACT

True synovial cysts of the spine are rare, though they are included in the differential diagnosis of an extradural lesion in a patient with pain which is radicular or localized at the involved level of the spine. A case of a lumbar synovial cyst causing lumbar radiculopathy and mimicking an extradural tumor is presented. The lesion was demonstrated by magnetic resonance imaging, and the relief of symptoms was achieved by decompressive laminectomy and total removal of the mass.