title: Metastatic meningioma detected in pleural fluid.
abstract: Meningiomas with both malignant cytologic features and clinical behavior are rare. A 39-yr-old man with recurrent meningioma developed a pleural effusion which, on cytologic examination, contained metastatic meningioma. The diagnosis was subsequently confirmed histologically and ultrastructurally. In conclusion, metastatic meningiomas can retain meningotheliomatous cytologic features which may allow a diagnosis to be made of clinically unanticipated tumor spread.
authors.affiliation: Department of Pathology, University of Manitoba, Winnipeg, Canada.
authors.forename: J R
authors.initials: JR
authors.lastname: Safneck
authors.forename: W C
authors.initials: WC
authors.lastname: Halliday
authors.forename: G
authors.initials: G
authors.lastname: Quinonez
mesh_terms: D000328:Adult; D014408:Biomarkers, Tumor / Q000032:analysis; D001932:Brain Neoplasms / Q000378:metabolism / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D008579:Meningioma / Q000378:metabolism / Q000473:pathology* / Q000556:secondary* / Q000601:surgery; D016066:Pleural Effusion, Malignant / Q000473:pathology*; D010997:Pleural Neoplasms / Q000378:metabolism / Q000556:secondary* / Q000601:surgery
chemical_list: D014408:Biomarkers, Tumor