Multiple cauda equina schwannomas in neurofibromatosis type 2
The patient, who has an established diagnosis of NF2, went on to have surgery for the largest L4 level lesion.
MICROSCOPIC DESCRIPTION: Paraffin sections show fragments of a moderately hypercellular neurilemmoma (Schwannoma). This is composed of predominantly of Antoni A type tissue in which there are occasional poorly formed Verocay bodies. Tumor cells show mild nuclear pleomorphism. No mitotic figures, densely hypercellular areas or areas of necrosis are identified.