title: [Primary low-grade non-Hodgkin's B lymphoma mimicking meningioma].
abstract: Primary dural lymphomas are rare. Usually they present themselves as diffuse lesions and are infrequently well-delimited. We present a 44 year old male, who was admitted into our Centre after a generalised seizure. Neuroimage studies (CT scan, MRI and angiography) were performed, demonstrating a right hemispheric well-delimited extra-axial mass, being diagnosed initially as meningioma. The patient underwent surgery with radical scission of the mass and dural margins. Histopathological diagnosis was Non-Hodgkin B-Cell lymphoma (marginal B-Cell lymphoma), which nowadays is considered as MALT lymphoma (Mucosa Associated Lymphoid Tissue). Studies directed to establish tumour extension didn't demonstrate the existence of another lesions in the organism.
authors.affiliation: Servicio de Neurocirugía, Hospital De Navarra. vazquezmed@adv.es
authors.forename: A
authors.initials: A
authors.lastname: Vázquez
authors.forename: E
authors.initials: E
authors.lastname: Portillo
authors.forename: J
authors.initials: J
authors.lastname: Guridi
authors.forename: I
authors.initials: I
authors.lastname: Zazpe
authors.forename: M C
authors.initials: MC
authors.lastname: Caballero
authors.forename: C
authors.initials: C
authors.lastname: Valentí
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D018442:Lymphoma, B-Cell, Marginal Zone / Q000175:diagnosis*; D008297:Male; D008577:Meningeal Neoplasms / Q000175:diagnosis*; D008579:Meningioma / Q000175:diagnosis*
vernacular_title: Linfoma dural primario no Hodgkin B de bajo grado simulando un meningioma.