title: Cavernous sinus syndrome due to osteochondromatosis in a cat.
abstract: A 1-year-old sexually intact male Korat cat was referred for ophthalmological consultation due to anisocoria. Mydriasis with external ophthalmoplegia and absence of pupillary light responses in the right eye and nasofacial hypalgesia were seen. Cavernous sinus syndrome (CSS) was suspected. Bilateral deformities of the jaw and phalangeal bones, severe spinal pain and abnormal conformation of the lumbar spine were also present. Radiographic examination revealed several mineralised masses in the appendicular and axial skeleton, indicative of multiple cartilaginous exostoses. For further investigation of the CSS-related neurological deficits, the cat underwent computed tomography (CT) examination of the skull. CT images revealed a non-vascularised, calcified, amorphous mass originating from the right lateral skull base and superimposing on the sella turcica. Based on the severity of diffuse lesions and owing to the clinical signs of extreme pain, the cat was euthanased. A diffuse skeletal and intracranial osteochondromatosis was diagnosed histologically.
authors.affiliation: 1Department of Animal Medicine, Production and Health, Clinical Section, University of Padua, Legnaro, Padua, Italy.
authors.forename: Anna
authors.initials: A
authors.lastname: Perazzi
authors.forename: Marco
authors.initials: M
authors.lastname: Bernardini
authors.forename: Maria T
authors.initials: MT
authors.lastname: Mandara
authors.forename: Giulia M
authors.initials: GM
authors.lastname: De Benedictis
authors.forename: Francesca
authors.initials: F
authors.lastname: De Strobel
authors.forename: Alessandro
authors.initials: A
authors.lastname: Zotti
mesh_terms: D000818:Animals; D002371:Cat Diseases / Q000209:etiology* / Q000473:pathology; D002415:Cats; D002426:Cavernous Sinus / Q000473:pathology*; D008297:Male; D018216:Osteochondromatosis / Q000150:complications / Q000662:veterinary*