title: Ventricular ependymoma in a German Shepherd dog.
abstract: Using magnetic resonance imaging (MRI) together with clinical, pathomorphological and immunohistological methods, a ependymoma is described in a 9-year-old German Shepherd dog, which presented with behavioural and oculocephalic responses and generalised ataxia. The ependymoma, 9 x 6 x 5mm in size, was localised intra-axially in the right interventricular foramen and hydrocephalus was observed by MRI. Microscopically, the tumour was composed of pseudorosettes, and immunohistochemical examination revealed vimentin and glial fibrillary acidic protein immunoreactivity in the neoplastic cells.
authors.affiliation: Department of Pathology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey. sevilvural@yahoo.com
authors.forename: S Atalay
authors.initials: SA
authors.lastname: Vural
authors.forename: O
authors.initials: O
authors.lastname: Besalti
authors.forename: F
authors.initials: F
authors.lastname: Ilhan
authors.forename: A
authors.initials: A
authors.lastname: Ozak
authors.forename: M
authors.initials: M
authors.lastname: Haligur
mesh_terms: D000818:Animals; D002551:Cerebral Ventricle Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000662:veterinary*; D004283:Dog Diseases / Q000175:diagnosis* / Q000473:pathology; D004285:Dogs; D004806:Ependymoma / Q000175:diagnosis / Q000473:pathology / Q000662:veterinary*; D017809:Fatal Outcome; D007150:Immunohistochemistry / Q000662:veterinary; D008279:Magnetic Resonance Imaging / Q000662:veterinary; D008297:Male