Schwannoma: cauda equina

Case contributed by A.Prof Frank Gaillard

Presentation

MBA with spinal fracture requiring fixation. Incidental finding for work up.

Patient Data

Age: 55 years
Modality: MRI

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. 

Case Discussion

The patient went on to have resection.

Histology

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

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Case Information

rID: 44972
Case created: 10th May 2016
Last edited: 21st Apr 2017
System: Spine
Inclusion in quiz mode: Included

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