title: Intraventricular ganglioglioma with extensive hemorrhage.
abstract: Gangliogliomas represent a rare form of neuroepithelial tumor (up to 1.3% of brain tumors [<xref-ref>1</xref-ref>]), which even more rarely present with hemorrhage or localize intraventricularly. To date, only two cases of ganglioglioma with both of these features have been reported. Our patient is a 23-year-old woman who presented with signs and symptoms of increased intracranial pressure (ICPI), with a post-subtotal resection diagnosis of WHO Grade I ganglioglioma localizing bilaterally to the lateral ventricles. One year following the operation, the tumor showed radiologic evidence of interval hemorrhage, which was verified histopathologically following a second subtotal resection. Greater than 95% of the lesion represented a large hematoma with organization and well-defined fibrous pseudo-capsule, with very scanty fragments of adjacent/peripheral low-grade neuroglial tumor. This case represents a very rare presentation of intraventricular ganglioglioma with extensive hemorrhage. .
authors.forename: William
authors.initials: W
authors.lastname: Warnica
authors.forename: John P
authors.initials: JP
authors.lastname: Provias
mesh_terms: D001932:Brain Neoplasms / Q000175:diagnosis / Q000473:pathology*; D005260:Female; D018303:Ganglioglioma / Q000150:complications / Q000175:diagnosis / Q000473:pathology*; D006801:Humans; D020300:Intracranial Hemorrhages / Q000150:complications / Q000175:diagnosis / Q000473:pathology*; D020547:Lateral Ventricles / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000379:methods; D014057:Tomography, X-Ray Computed / Q000379:methods; D055815:Young Adult