Angiocentric neuroepithelial tumor (ANET): a new epilepsy-related clinicopathological entity with distinctive MRI. Export

@article{citeulike:2766965, abstract = {Several types of glioneuronal tumors are known to induce intractable partial seizures in children and adults. The most frequent are dysembryoplastic neuroepithelial tumors (DNETs) and gangliogliomas. We report here a new clinicopathological entity within the spectrum of glioneuronal tumors observed in 10 children who underwent surgery for refractory epilepsy. These tumors demonstrate a unique, pathognomonic histological pattern and a specific appearance at magnetic resonance imaging (MRI). The most striking neuropathological feature is an angiocentric polarity of the tumor with gliofibrillary acidic protein (GFAP) positive fusiform and bipolar astrocytic cells arranged around blood vessels (perivascular cuffing with tumoral astrocytes). Characteristic MRI findings include involvement of cortical gray and white matter, intrinsically high signal on T1-weighted images, as well as a stalk like extension to the ventricle. Immunohistochemical neuronal markers (neurofilament protein, synaptophysin and chromogranin) confirm the presence of a neuronal cell component. Therefore, the term angiocentric neuroepithelial tumor (ANET) is proposed.}, address = {Department of Neuropathology, Universit\'{e} Paris-Descartes, Facult\'{e} de M\'{e}decine, Paris, France. arielle.lellouch@nck.ap-hop-paris.fr}, author = {Lellouch-Tubiana, A. and Boddaert, N. and Bourgeois, M. and Fohlen, M. and Jouvet, A. and Delalande, O. and Seidenwurm, D. and Brunelle, F. and Sainte-Rose, C.}, citeulike-article-id = {2766965}, citeulike-linkout-0 = {http://view.ncbi.nlm.nih.gov/pubmed/16389940}, citeulike-linkout-1 = {http://www.hubmed.org/display.cgi?uids=16389940}, issn = {1015-6305}, journal = {Brain pathology (Zurich, Switzerland)}, keywords = {anet, angiocentric-neuroepithelial-tumor, neuro-oncologie}, month = {October}, number = {4}, pages = {281--286}, posted-at = {2008-05-07 17:37:37}, priority = {2}, title = {Angiocentric neuroepithelial tumor (ANET): a new epilepsy-related clinicopathological entity with distinctive MRI.}, url = {http://view.ncbi.nlm.nih.gov/pubmed/16389940}, volume = {15}, year = {2005} }

TY - JOUR ID - citeulike:2766965 L3 - citeulike-article-id:2766965 N2 - Several types of glioneuronal tumors are known to induce intractable partial seizures in children and adults. The most frequent are dysembryoplastic neuroepithelial tumors (DNETs) and gangliogliomas. We report here a new clinicopathological entity within the spectrum of glioneuronal tumors observed in 10 children who underwent surgery for refractory epilepsy. These tumors demonstrate a unique, pathognomonic histological pattern and a specific appearance at magnetic resonance imaging (MRI). The most striking neuropathological feature is an angiocentric polarity of the tumor with gliofibrillary acidic protein (GFAP) positive fusiform and bipolar astrocytic cells arranged around blood vessels (perivascular cuffing with tumoral astrocytes). Characteristic MRI findings include involvement of cortical gray and white matter, intrinsically high signal on T1-weighted images, as well as a stalk like extension to the ventricle. Immunohistochemical neuronal markers (neurofilament protein, synaptophysin and chromogranin) confirm the presence of a neuronal cell component. Therefore, the term angiocentric neuroepithelial tumor (ANET) is proposed. IS - 4 JF - Brain pathology (Zurich, Switzerland) SN - 1015-6305 AD - Department of Neuropathology, Université Paris-Descartes, Faculté de Médecine, Paris, France. arielle.lellouch@nck.ap-hop-paris.fr EP - 286 TI - Angiocentric neuroepithelial tumor (ANET): a new epilepsy-related clinicopathological entity with distinctive MRI. VL - 15 SP - 281 KW - anet KW - angiocentric-neuroepithelial-tumor KW - neuro-oncologie AU - Lellouch-Tubiana, A AU - Boddaert, N AU - Bourgeois, M AU - Fohlen, M AU - Jouvet, A AU - Delalande, O AU - Seidenwurm, D AU - Brunelle, F AU - Sainte-Rose, C PY - 2005/10// UR - http://view.ncbi.nlm.nih.gov/pubmed/16389940 ER -