title: Meningeal inflammatory pseudotumour: a case report.
abstract: We report the case of a meningeal inflammatory pseudotumour occurring in a 23-year-old male presenting with focal seizures and headaches. Brain imaging techniques showed a 3.5 cm left parietal meningeal tumour. Histology of the surgical specimen showed a dense lymphoid infiltrate permeating the dura mater and leptomeninges, consisting of a predominant polyclonal B cell population as confirmed by immunophenotyping and genotyping. Cultures of serum, CSF, and surgical specimen were negative and there was no serological evidence of a systemic dysimmune disease. The postoperative course was complicated by an episode of brain oedema resolving under steroid therapy. The patient, free from all medication, is asymptomatic at 3 years of follow-up. We discuss previously published cases and the nosology of intracranial inflammatory pseudotumours.
authors.affiliation: Laboratory of Neuropathology, University Hospital of Liège, Belgium.
authors.forename: L
authors.initials: L
authors.lastname: Gollogly
authors.forename: B
authors.initials: B
authors.lastname: Sadzot
authors.forename: J P
authors.initials: JP
authors.lastname: Lejeune
authors.forename: M
authors.initials: M
authors.lastname: Deprez
mesh_terms: D000328:Adult; D004388:Dura Mater / Q000473:pathology / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008577:Meningeal Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D008581:Meningitis / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D011559:Pseudotumor Cerebri / Q000175:diagnosis / Q000473:pathology / Q000601:surgery