title: Meningioangiomatosis: advanced imaging and pathological study of two cases.
abstract: Meningioangiomatosis (MA) is a rare benign intracranial tumour of uncertain pathogenesis, with only 33 cases reported in the literature. Imaging features have been described in 21 cases, only 3 with contrast-enhanced MRI. We present two cases of MA with MRI and/or CT findings and gross, ultrastructural, and immunohistochemical characteristics. MRI is particularly helpful for establishing the origin of the lesion and its anatomical location, while CT shows calcification, if present. The pathological characteristics establish the diagnosis and underline the differences from other entities such as malignant meningioma, one of the most important differential diagnostic considerations.
authors.affiliation: Servicio de Radiodiagnóstico (Neurorradiología Infantil), Hospital Universitario Doce de Octubre, Madrid, Spain.
authors.forename: B
authors.initials: B
authors.lastname: Gómez-Ansón
authors.forename: A
authors.initials: A
authors.lastname: Munõz
authors.forename: A
authors.initials: A
authors.lastname: Blasco
authors.forename: S
authors.initials: S
authors.lastname: Madero
authors.forename: J
authors.initials: J
authors.lastname: Esparza
authors.forename: F
authors.initials: F
authors.lastname: Cordobés
authors.forename: G
authors.initials: G
authors.lastname: Orejón
authors.forename: F
authors.initials: F
authors.lastname: Mateos
mesh_terms: D000798:Angiomatosis / Q000000981:diagnostic imaging / Q000473:pathology*; D001921:Brain / Q000000981:diagnostic imaging / Q000473:pathology; D002648:Child; D002675:Child, Preschool; D006801:Humans; D008297:Male; D008577:Meningeal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D011859:Radiography