Lovett MC, Fenner WR, Watson AT, Hostutler RA. Imaging diagnosis-MRI characteristics of a fourth ventricular cholesterol granuloma in a dog.
Vet Radiol Ultrasound 2012;
53:650-4. [PMID:
22731914 DOI:
10.1111/j.1740-8261.2012.01946.x]
[Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2011] [Revised: 03/28/2012] [Accepted: 03/29/2012] [Indexed: 11/27/2022] Open
Abstract
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.
Collapse