Congenital external hydrocephalus in a dog

A 4‐year‐old female Chihuahua was presented with progressive seizures, blindness and lethargy. Neurolocalisation was consistent with a diffuse brain lesion affecting the forebrain and cerebellum. MRI demonstrated dilation of the subarachnoid space dorsolaterally surrounding the cerebrum, filled with...

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Bibliographic Details
Published in:Journal of small animal practice 2020-11, Vol.61 (11), p.710-713
Main Authors: Gomes, S. A., Targett, M., Lowrie, M.
Format: Article
Language:English
Subjects:
Atrophy
Blindness
Cerebellum
Cerebrospinal fluid
Cerebrum
Forebrain
Hydrocephalus
Magnetic resonance imaging
Seizures
Subarachnoid space
Ventricle
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Summary:A 4‐year‐old female Chihuahua was presented with progressive seizures, blindness and lethargy. Neurolocalisation was consistent with a diffuse brain lesion affecting the forebrain and cerebellum. MRI demonstrated dilation of the subarachnoid space dorsolaterally surrounding the cerebrum, filled with cerebrospinal fluid (CSF). Ventricular system size was normal, but mild cerebral atrophy was suspected. There was pachymeningeal contrast enhancement, but CSF analysis was unremarkable. This lesion was interpreted to be an external hydrocephalus of suspected congenital origin.
ISSN:0022-4510
1748-5827
DOI:10.1111/jsap.13016