HISTOLOGY - SURGICAL SPECIMEN

A malignant tumour composed of round-elongated cells containing hyperchromatic nuclei situated in a fibrillary stroma.  Several cells contain bizarre nuclei. There are Rosenthal fibres and eosinophilic protein droplets (granular bodies). Tumour cells stain positively for GFAP.

The appearances are those of a pilocytic astrocytoma.

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