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Peer-reviewed veterinary case report

Dog with right eye nerve tumor causing vision and pupil problems

By Hernández-Guerra, Angel María et al.·Published in Veterinary journal (London, England : 1997)·2007·Departamento de Medicina y Cirug&#xed, Spain·View original on PubMed

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Original publication title: Computed tomographic diagnosis of unilateral cavernous sinus syndrome caused by a chondrosarcoma in a dog: a case report.

Species:
dog
Canine GlaucomaBrain & nervesDogs

Plain-English summary

An 8-year-old Rottweiler was brought to the vet because his right eye was sinking into the socket, drooping, and had an uneven pupil size, along with vision problems and difficulty moving the eye. These symptoms suggested a serious condition affecting the nerves around the eye. A CT scan showed a mass in the skull that was pressing on the nerves. Unfortunately, despite treatment efforts, the dog's condition worsened, and he was euthanized about a year later. A chondrosarcoma (a type of bone cancer) was found during the post-mortem examination.

People also search for: dog eye problems · Rottweiler eye drooping · chondrosarcoma in dogs · dog neurological signs · why is my dog’s eye sinking

Abstract

An eight-year old Rottweiler dog was presented with signs of enophthalmia, ptosis, anisocoria and mydriasis of the right eye, which showed visual disturbance, reduced or absent reflexes, and ophthalmoplegia. Consensual pupillary light reflex was also absent in the left eye. These neurological deficits were compatible with cavernous sinus syndrome. Computed tomography images of the cavernous sinus and the optical fissure revealed a mildly calcified mass arising from the right presphenoid bone extending further caudally into the orbital foramina. This extension of the mass affected the normal function of several cranial nerves. The dog was euthanased within one year of the initial presentation following development of forebrain signs. A chondrosarcoma was diagnosed histologically after necropsy.

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Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/16782369/