Imaging diagnosis-MRI characteristics of a fourth ventricular cholesterol granuloma in a dog.
A 2-year-old male American Bulldog experienced paroxysmal staggering, altered consciousness, and hyperesthesia. Magnetic resonance (MR) imaging enabled recognition of a fourth ventricular mass causing compression of the cerebellum and brainstem and obstructive hydrocephalus. The mass was uniformly T2-hyperintense and predominantly T1-hypointense. A fluid line was evident on the fluid-attenuated inversion recovery images. A thin rim of contrast enhancement was noted. Histopathologic diagnosis was a cholesterol granuloma. We were unable to identify any other reports of a cholesterol granuloma residing in the fourth ventricle of a dog. This case report documents the clinical, diagnostic imaging, and histopathologic findings of a canine intracranial cholesterol granuloma. © 2012 Veterinary Radiology & Ultrasound.
mathew.lovett@gmail.com
Mathew C
MC
Lovett
William R
WR
Fenner
Adam T
AT
Watson
Roger A
RA
Hostutler
D000818:Animals; D001927:Brain Diseases / Q000175:diagnosis / Q000473:pathology / Q000662:veterinary*; D002552:Cerebral Ventricles; D002784:Cholesterol; D004285:Dogs; D005547:Foreign Bodies / Q000175:diagnosis / Q000473:pathology / Q000662:veterinary*; D006099:Granuloma / Q000175:diagnosis / Q000473:pathology / Q000662:veterinary*; D008279:Magnetic Resonance Imaging / Q000662:veterinary*; D008297:Male
D002784:Cholesterol