title: Chordoid Glioma of Third Ventricle With an Epidermoid Cyst: Coexistence or Common Histogenesis?
abstract: Chordoid glioma (CG) is a World Health Organization classified grade II tumor located exclusively in the region of anterior third ventricle. Association of CG with other lesions is extremely rare. We report a case of CG in a 45-year-old male coexisting with an epidermoid cyst in the third ventricle. Ultrastructural examination of the CG revealed microvilli, junctional complexes, and intermediate filaments within the cytoplasm suggesting origin from specialized ependyma. The association of the 2 lesions appears coincidental as convincing evidence for a common histogenesis was not found.
authors.affiliation: Department of Neuropathology, NIMHANS, Bangalore, Karnataka, India.
authors.forename: Rajalakshmi
authors.initials: R
authors.lastname: Poyuran
authors.affiliation: Department of Neuropathology, NIMHANS, Bangalore, Karnataka, India mahadevananita@gmail.com.
authors.forename: Anita
authors.initials: A
authors.lastname: Mahadevan
authors.affiliation: Department of Neuropathology, NIMHANS, Bangalore, Karnataka, India.
authors.forename: B K Chandrasekhar
authors.initials: BK
authors.lastname: Sagar
authors.affiliation: Department of Neuroimaging & Interventional Radiology, NIMHANS, Bangalore, Karnataka, India.
authors.forename: Jitender
authors.initials: J
authors.lastname: Saini
authors.affiliation: Department of Neurosurgery, NIMHANS, Bangalore, Karnataka, India.
authors.forename: Dwarakanath
authors.initials: D
authors.lastname: Srinivas
mesh_terms: D014408:Biomarkers, Tumor / Q000032:analysis; D001927:Brain Diseases / Q000150:complications* / Q000473:pathology; D002551:Cerebral Ventricle Neoplasms / Q000150:complications* / Q000473:pathology / Q000648:ultrastructure; D004814:Epidermal Cyst / Q000150:complications* / Q000473:pathology / Q000648:ultrastructure; D005910:Glioma / Q000150:complications* / Q000473:pathology / Q000648:ultrastructure; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008875:Middle Aged; D020542:Third Ventricle / Q000473:pathology* / Q000648:ultrastructure
chemical_list: D014408:Biomarkers, Tumor
keywords: III ventricle; chordoid glioma; epidermoid cyst; histogenesis; lamina terminalis