title: [Malignant meningeal "histiocytosis"].
abstract: Two cases of patients with unusual pleomorphic tumors in the meninges are reported. Histologically and immunohistologically, the tumor cells may be histiocytic in appearance. Computed tomography and magnetic resonance imaging scans, however, revealed no lesions in the parenchyma or in the meninges. The cytological examination of the cerebrospinal fluid revealed only a light lymphocytic reaction without tumor cells in both cases and thus led to misinterpretations as meningoencephalitis. One patient presented psychiatric symptoms. Related clinical problems and the possible histogenesis of the tumors are discussed.
authors.affiliation: Zentrum für Psychiatrie, Universitätsklinik Bochum, Deutschland.
authors.forename: S
authors.initials: S
authors.lastname: Schröder
authors.forename: J R
authors.initials: JR
authors.lastname: Iglesias-Rozas
authors.forename: U
authors.initials: U
authors.lastname: Müller
authors.forename: G A
authors.initials: GA
authors.lastname: Wiesbeck
authors.forename: E
authors.initials: E
authors.lastname: Egner
authors.forename: J
authors.initials: J
authors.lastname: Finke
authors.forename: B
authors.initials: B
authors.lastname: Kraus-Huonder
mesh_terms: D000328:Adult; D000918:Antibody Specificity; D015415:Biomarkers / Q000032:analysis; D014408:Biomarkers, Tumor / Q000032:analysis; D015614:Histiocytosis / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D008264:Macrophages / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008297:Male; D008577:Meningeal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000523:psychology; D014057:Tomography, X-Ray Computed
chemical_list: D015415:Biomarkers; D014408:Biomarkers, Tumor
vernacular_title: Meningeale maligne "Histiozytose".