title: IMAGING DIAGNOSIS-MAGNETIC RESONANCE IMAGING AND HISTOPATHOLOGICAL FEATURES OF A SKULL BASE CHORDOMA IN A CAT.
abstract: An 8-year-old domestic short-haired cat was presented with anorexia, lethargy, ataxia and one episode of consciousness loss. A midline vertically orientated, biconcave, extra-axial mass originating from the basioccipital bone was detected on magnetic resonance images of the head. The mass was T1W iso- to hypointense when compared with normal grey matter, T2W hyperintense with small areas of isointensity and heterogeneously enhanced with contrast. Multiple signal voids were observed on T2*images. Histopathological evaluation confirmed a chordoma. To the authors' knowledge this is the first report of the imaging characteristics of a chordoma affecting the skull base in a cat.
authors.affiliation: College of Medical, Veterinary and Life Sciences, University of 6 Glasgow, Bearsden Road, Glasgow, G61 1QH, UK.
authors.forename: Josep
authors.initials: J
authors.lastname: Brocal
authors.affiliation: College of Medical, Veterinary and Life Sciences, University of 6 Glasgow, Bearsden Road, Glasgow, G61 1QH, UK.
authors.forename: Virginia
authors.initials: V
authors.lastname: Gamino
authors.affiliation: College of Medical, Veterinary and Life Sciences, University of 6 Glasgow, Bearsden Road, Glasgow, G61 1QH, UK.
authors.forename: Julien
authors.initials: J
authors.lastname: Guevar
authors.affiliation: College of Medical, Veterinary and Life Sciences, University of 6 Glasgow, Bearsden Road, Glasgow, G61 1QH, UK.
authors.forename: Rodrigo
authors.initials: R
authors.lastname: Gutierrez-Quintana
authors.affiliation: College of Medical, Veterinary and Life Sciences, University of 6 Glasgow, Bearsden Road, Glasgow, G61 1QH, UK.
authors.forename: Francesco
authors.initials: F
authors.lastname: Marchesi
authors.affiliation: College of Medical, Veterinary and Life Sciences, University of 6 Glasgow, Bearsden Road, Glasgow, G61 1QH, UK.
authors.forename: Gawain
authors.initials: G
authors.lastname: Hammond
authors.affiliation: College of Medical, Veterinary and Life Sciences, University of 6 Glasgow, Bearsden Road, Glasgow, G61 1QH, UK.
authors.forename: Catherine
authors.initials: C
authors.lastname: Stalin
mesh_terms: D000818:Animals; D002371:Cat Diseases / Q000000981:diagnostic imaging* / Q000209:etiology; D002415:Cats; D002817:Chordoma / Q000000981:diagnostic imaging / Q000209:etiology / Q000662:veterinary*; D003937:Diagnosis, Differential; D005260:Female; D008279:Magnetic Resonance Imaging / Q000662:veterinary; D019291:Skull Base / Q000000981:diagnostic imaging / Q000473:pathology; D019292:Skull Base Neoplasms / Q000000981:diagnostic imaging / Q000209:etiology / Q000662:veterinary*
keywords: cat; chordoma; magnetic resonance imaging; neoplasia; skull