Collie eye anomaly in a mixed-breed dog

A 5-year-old, mixed-breed dog was presented for tetraparesis. Neurologic alterations included a decreased menace response in both eyes. Therefore, an ophthalmic examination was requested. The dog was visual, but menace response, dazzle and pupillary light reflexes were reduced bilaterally. Indirect...

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Veröffentlicht in:Veterinary ophthalmology 2005-09, Vol.8 (5), p.357-360
Hauptverfasser: Rampazzo, A, D'Angelo, A, Capucchio, M.T, Sereno, S, Peruccio, C
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container_end_page 360
container_issue 5
container_start_page 357
container_title Veterinary ophthalmology
container_volume 8
creator Rampazzo, A
D'Angelo, A
Capucchio, M.T
Sereno, S
Peruccio, C
description A 5-year-old, mixed-breed dog was presented for tetraparesis. Neurologic alterations included a decreased menace response in both eyes. Therefore, an ophthalmic examination was requested. The dog was visual, but menace response, dazzle and pupillary light reflexes were reduced bilaterally. Indirect ophthalmoscopy revealed bilateral optic nerve coloboma and severe choroidal hypoplasia. These lesions closely resembled the ophthalmoscopic features of Collie eye anomaly (CEA). In spite of treatment, the dog's condition worsened and the animal was therefore euthanized. Histology of the globes confirmed severe choroidal hypoplasia and optic disc coloboma in both eyes. The dog was diagnosed to have a lymphoma involving the spinal cord. The two entities were considered not related. As only moderate sight impairment was caused by the posterior segment anomalies, it is by chance that these lesions resembling CEA were found in this mixed-breed dog.
doi_str_mv 10.1111/j.1463-5224.2005.00417.x
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Neurologic alterations included a decreased menace response in both eyes. Therefore, an ophthalmic examination was requested. The dog was visual, but menace response, dazzle and pupillary light reflexes were reduced bilaterally. Indirect ophthalmoscopy revealed bilateral optic nerve coloboma and severe choroidal hypoplasia. These lesions closely resembled the ophthalmoscopic features of Collie eye anomaly (CEA). In spite of treatment, the dog's condition worsened and the animal was therefore euthanized. Histology of the globes confirmed severe choroidal hypoplasia and optic disc coloboma in both eyes. The dog was diagnosed to have a lymphoma involving the spinal cord. The two entities were considered not related. 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source MEDLINE; Wiley Online Library Journals Frontfile Complete
subjects Animals
case studies
Choroid - abnormalities
choroidal hypoplasia
Collie eye anomaly
coloboma
Coloboma - diagnosis
Coloboma - pathology
Coloboma - veterinary
congenital abnormalities
crossbreds
dog diseases
Dog Diseases - diagnosis
Dog Diseases - pathology
Dogs
Eye Abnormalities - diagnosis
Eye Abnormalities - pathology
Eye Abnormalities - veterinary
eye diseases
Fatal Outcome
Fundus Oculi
German Shepherd
Golden Retriever
hypoplasia
lesions (animal)
lymphoma
Lymphoma - complications
Lymphoma - veterinary
mixed‐breed dog
optic disc coloboma
Optic Nerve - abnormalities
peripheral nerves
Quadriplegia - etiology
Quadriplegia - veterinary
spinal cord
Spinal Cord Neoplasms - complications
Spinal Cord Neoplasms - veterinary
vision
title Collie eye anomaly in a mixed-breed dog
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