Corpus Callosum Abnormality in a Free-Ranging Coyote (Canis latrans)

A juvenile coyote (Canis latrans) was presented to a wildlife rehabilitation center with intermittent circling, hypernatremia, and elevated blood urea nitrogen. Diagnostic testing supported a diagnosis of hypodipsic hypernatremia. Postmortem magnetic resonance imaging (MRI) and necropsy revealed marked hypoplasia of the corpus callosum, a finding not previously reported in a free-ranging animal.