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.