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Africa
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Neurocytoma
Published in Dongyou Liu, Tumors and Cancers, 2017
Neurocytoma is a rare, mostly benign neoplasm of the CNS, accounting for only 0.1%–0.5% of all intracranial tumors. Typically affecting young adults around the third decade (ranging from 2 to 70 years), it constitutes nearly 50% of adult supratentorial intraventricular tumors, with a higher prevalence in Asian populations than in Caucasians.
Papillary glioneuronal tumor: a case report of the cerebral aqueduct and review of literature
Published in British Journal of Neurosurgery, 2021
Hillary Sayuri Ramires Hoshino, Bruna Grazielle Silva dos Santos, Adriano Barreto Nogueira, Antonio Celso Alvarenga Guimarães
Neuronal-glial tumours are a heterogeneous group of lesions regarding clinical features and immunohistochemistry findings, containing both glial and neuronal components.1 This group forms an important category of central nervous system neoplasms that includes tumours, such as dysembryoplastic neuroepithelial tumour, ganglioglioma, desmoplastic infantile astrocytoma, central neurocytoma, and cerebellar liponeurocytoma.1,2 Papillary glioneuronal tumour (PGNT) is a variant firstly classified in 2007 by the World Health Organization as a grade I neuronal-glial tumour.2 This tumour displays cytologic benignity, very low proliferative activity, and lack of mitosis, vascular endothelial cell hyperplasia, or necrosis; its natural course is insidious.3 Patients range in age from 4 to 75 years and present with a variety of symptoms including headaches, seizures, vomiting, language or visual disturbances, and hemiparesis.4 The purpose of this paper is to describe a new case of PGNT of the cerebral aqueduct regarding its clinical, imaging, and neuropathological features, aiming at increasing the knowledge on this type of tumour and contributing to its management.