Choroid plexus papilloma

Discussion:

The patient went on to have a resection. 

Histology

MICROSCOPIC DESCRIPTION: Paraffin sections confirm the frozen section diagnosis of choroid plexus papilloma. The consist of fragments of delicate papillary structures with fibrovascular cores covered by a single layer of cytologically unremarkable choroid plexus epithelium. No mitotic figures, solid papillae or areas of necrosis are identified. 

DIAGNOSIS:

Choroid plexus papilloma.

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