Magnetic resonance imaging of an equine ependymoma

Abstract

A 16-year-old Warmblood gelding was presented with head tilt and a history of increasing numbers of seizures with alterations in consciousness. After each seizure the horse was depressed and quiet whereas before the episodes the gelding was restless, distracted and showed signs of discomfort (chewing, rolling its eyes). In the interictal period the horse was normal. Magnetic resonance imaging revealed a third ventricle mass and ventriculomegaly of the third and lateral ventricles. Histology of the mass was consistent with a well differentiated ependymoma.