Schwannoma: cauda equina
MBA with spinal fracture requiring fixation. Incidental finding for work up.
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An enhancing intradural mass within the theca at L3 most likely represents a sheath tumour (schwannoma). Prior anterior wedging of the T12 vertebral body noted with internal fixation at T11 and L1.
The patient went on to have resection.
MICROSCOPIC DESCRIPTION: The sections show an encapsulated moderately hypercellular neurilemmoma (Schwannoma) composed both of Antoni A & B type tissues. Moderately well formed Verocay bodies are noted in Antoni A areas and there are numerous small calibre blood vessels with thickened hyalinised walls. No mitotic figures, densely hypercellular areas or areas of necrosis are identified.
FINAL DIAGNOSIS: Spinal schwannoma