title: Microcystic meningioma of the falx cerebri with numerous palisaded structures: an unusual histological pattern mimicking schwannoma.
abstract: We report a microcystic meningioma of the falx cerebri which had an unusual histological pattern. It contained numerous palisaded structures in loose areas, giving the appearance of the loose and dense areas of a schwannoma. There were minimal meningeal whorls. Ultrastructural study confirmed the totally meningiomatous nature of this tumor.
mesh_terms: D003937:Diagnosis, Differential; D004388:Dura Mater / Q000473:pathology*; D005260:Female; D006801:Humans; D008577:Meningeal Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000648:ultrastructure; D008579:Meningioma / Q000175:diagnosis / Q000473:pathology* / Q000648:ultrastructure; D008875:Middle Aged; D009442:Neurilemmoma / Q000175:diagnosis*