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Related Experiment Videos

Periventricular changes associated with spontaneous canine hydrocephalus.

A Wünschmann1, M Oglesbee

  • 1Department of Veterinary Biosciences, Ohio State University, Columbus 43210, USA.

Veterinary Pathology
|February 24, 2001
PubMed
Summary

Canine juvenile hydrocephalus causes significant periventricular white matter damage, including diverticula and clefts. These lesions, linked to cerebrospinal fluid shifts, can lead to neurological decline in affected dogs.

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Area of Science:

  • Veterinary Neurology
  • Canine Pathology
  • Neuroscience

Background:

  • Canine juvenile hydrocephalus is a known condition.
  • The specific effects on periventricular white matter are less understood.
  • This study investigates these detailed effects.

Purpose of the Study:

  • To document and characterize lesions in the periventricular white matter of juvenile dogs with hydrocephalus.
  • To explore the potential mechanisms behind these lesions.

Main Methods:

  • Necropsy examination of 20 juvenile dogs with marked hydrocephalus (1990-1999).
  • Severity grading based on ventricular dimensions and cortical thickness.
  • Histopathological assessment of ependymal and white matter lesions.

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Main Results:

  • All dogs showed ependymal lesions (attenuation, ulceration).
  • 50% exhibited periventricular diverticula and clefts near the caudate nucleus.
  • Lesions included diverticula, clefts (suggesting ischemia), and tearing of white matter, with evidence of chronicity.

Conclusions:

  • Hydrocephalus frequently causes severe periventricular white matter damage in juvenile dogs.
  • Mechanisms include cerebrospinal fluid shifts leading to diverticula and potential ischemic insults causing clefts.
  • These lesions can progress and correlate with neurological deficits.