• S Paquette, B Lach, and B Guiot.
• Division of Neurosurgery, Ottawa Hospital and University of Ottawa, Ontario, Canada.
• Neurosurgery. 2000 Apr 1;46(4):986-8.

Objective And ImportanceGouty arthritis and gouty tophi of the spine are very rare. We present a patient with the clinical manifestations of an intradural tumor and histologically proven gouty deposits in the filum terminale.Clinical PresentationThe patient presented with typical symptoms of lumbar radiculopathy and neurogenic claudication. There was no evidence of peripheral gout.InterventionImaging studies, including computed tomography and magnetic resonance imaging, demonstrated a 1-cm, round, intradural, calcified lesion at the L3 vertebral level, causing moderate spinal stenosis. The patient underwent a two-level laminectomy and removal of the mass. A pathological examination of the specimen revealed gouty deposits in the region of the filum terminale.ConclusionSpinal involvement in gout is very rare, and intradural gouty deposits have not been previously described. Intradural gout should be considered in the differential diagnosis of intradural masses.

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