title: [A unusual brain cortical tumor: angiocentric glioma].
abstract: We report the case of an 11-year-old girl, who was admitted for surgery of an epilepsy-associated brain tumor. The radiological and clinical hypothesis was dysembryoplasic neuroepithelial tumor. Histopathological examination revealed a tumoral proliferation composed of spindle-shaped cells with palisade arrangements around vessels. Tumor cells have small, round and regular nuclei without atypia or mitosis. On immunohistochemistry, the neoplastic cells strongly expressed GFAP and showed a characteristic cytoplasmic dot-like staining with EMA (epithelial membrane antigen). Ki-67 labeling index was low. Molecular analysis failed to reveal the V600E mutation of BRAF gene. The patient was free of seizures after surgery. Angiocentric glioma is a rare brain tumor occuring preferably in children and young adults and is associated with seizures. The precise histogenesis remains debated. The treatment of choice is total resection. The prognosis is favorable if totally resected.
authors.affiliation: Service d'anatomie et cytologie pathologiques, hôpital Lariboisière, 2, rue Ambroise-Paré, 75475 Paris, France. Electronic address: arnault.tauziedeespariat@gmail.com.
authors.forename: Arnault
authors.initials: A
authors.lastname: Tauziède-Espariat
authors.affiliation: Neurologie, fondation Rothschild, Paris, France.
authors.forename: Martine
authors.initials: M
authors.lastname: Fohlen
authors.affiliation: Neurochirurgie, fondation Rothschild, Paris, France.
authors.forename: Sarah
authors.initials: S
authors.lastname: Ferrand-Sorbets
authors.affiliation: Service d'anatomie et cytologie pathologiques, hôpital Lariboisière, 2, rue Ambroise-Paré, 75475 Paris, France.
authors.forename: Marc
authors.initials: M
authors.lastname: Polivka
mesh_terms: D001932:Brain Neoplasms / Q000473:pathology*; D002540:Cerebral Cortex; D002648:Child; D005260:Female; D005910:Glioma / Q000473:pathology*; D006801:Humans
keywords: Angiocentric; Angiocentrique; BRAF; Corticale; Epilepsy; Glioma; Gliome; Hemispheric; Épilepsie