title: Intracranial pseudolymphoma.
abstract: Intracranial pseudolymphoma is a rare tumor of the central nervous system. A 35-year-old woman presented with a frontal subcutaneous tumor. Magnetic resonance imaging revealed a left frontal meningeal tumor involving subcutaneous tissue without bone involvement. The mass was completely removed and the histological aspect of all tumor sections was that of a lymphoid hyperplasia with polyclonal proliferation. These findings were characteristic of pseudolymphoma defined as a hyperplasia of follicular and diffuse lymphoid type with assessment of its polyclonality by immunophenotyping on frozen sections, completed by molecular biology techniques.
authors.affiliation: Neurosurgical Department, CHU Timone, Marseille, France. adonnet@ap-hm.fr
authors.forename: A
authors.initials: A
authors.lastname: Donnet
authors.forename: N
authors.initials: N
authors.lastname: Horschowski
authors.forename: H
authors.initials: H
authors.lastname: Dufour
authors.forename: D
authors.initials: D
authors.lastname: Figarella-Branger
authors.forename: P A
authors.initials: PA
authors.lastname: Bryon
authors.forename: F
authors.initials: F
authors.lastname: Berger
authors.forename: J R
authors.initials: JR
authors.lastname: Harle
authors.forename: F
authors.initials: F
authors.lastname: Grisoli
mesh_terms: D000328:Adult; D001921:Brain / Q000473:pathology; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D019310:Pseudolymphoma / Q000175:diagnosis* / Q000601:surgery