title: Granular cell meningioma. A case report.
abstract: We describe a granular cell tumour developing in clear cell meningioma of the falx. Granular and clear cells showed immunoreactivity for vimentin, epithelial membrane antigen and progesterone receptors. This is the first case documenting arachnoid origin of neoplastic granular cells in meningioma.
authors.affiliation: Hamilton Health Sciences and McMaster University, Department of Pathology and Laboratory Medicine, Hamilton General Hospital, Hamilton, Ontario, Canada. boleklach2@hotmail.com
authors.forename: Bolesław
authors.initials: B
authors.lastname: Lach
authors.forename: Imaduddin
authors.initials: I
authors.lastname: Kanaan
mesh_terms: D000369:Aged, 80 and over; D016586:Granular Cell Tumor / Q000378:metabolism / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008577:Meningeal Neoplasms / Q000378:metabolism / Q000473:pathology*; D008579:Meningioma / Q000378:metabolism / Q000473:pathology*; D046529:Microscopy, Electron, Transmission