Myxopapillary ependymoma (histology)
Lumbar canal mass.
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MICROSCOPIC DESCRIPTION: The sections show a moderately hypercellular tumor which consists of ependymal cells arranged in well formed perivascular pseudorosettes. Myxoid material is present within the pseudorosettes, in many places forming microcysts. Tumor cells are arranged in diffuse sheets between pseudo-rosettes. The features are of myxopapillary ependymoma.
Case courtesy of Associate Professor Renate Kalnins.