Computed tomography of cholesterinic granulomas in the choroid plexus of horses.
Abstract: Cholesterinic granulomas are tumor-like masses in the choroid plexuses of horses. This report describes the computed tomographic findings in four horses with cholesterinic granulomas, including the clinical and the pathologic features. All four horses had bilateral cholesterinic granulomas in the lateral ventricles. Computed tomographic images clearly delineated the masses, the opacity of the granulomas, and the enhancement pattern after intravenous bolus injection of contrast medium; these factors varied considerably. Additional CT findings were symmetric or asymmetric widening of the lateral ventricles.
Publication Date: 1998-12-09 PubMed ID: 9845187DOI: 10.1111/j.1740-8261.1998.tb01641.xGoogle Scholar: Lookup
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- Journal Article
Summary
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The research article discusses the involvement of computed tomography in identifying tumour-like masses known as cholesterinic granulomas in the choroid plexuses of horses. The research examined four horses, revealing varying visual characteristics of the granulomas utilising CT imaging, specifically after using a contrast medium.
About Cholesterinic Granulomas
- Cholesterinic granulomas are tumor-like masses which are commonly found in the choroid plexuses of horses. The choroid plexus is a network of blood vessels in each ventricle of the brain, involved in producing cerebrospinal fluid.
Research Focus and Methods
- The research focused on the use of computed tomography (CT) to visually delineate and analyse the features of such granulomas in four horses.
- All the horses examined were found to have bilateral cholesterinic granulomas in their lateral ventricles i.e., the granulomas were present in both halves of their brains.
- Different characteristics of the granulomas were observed using CT which included the opacity of these growths, their enhancement pattern after intravenous bolus injection of contrast medium, and the degree of widening of the lateral ventricles.
Findings and Observations
- Computed tomography was found to be effective in observing the features of these granulomas.
- Images obtained through CT clearly showed the masses, their opacity, and their enhancement pattern. The enhancement pattern refers to the changes in visual characteristics of the granulomas after a contrast medium was injected into the horses. This medium enhances the visibility of internal structures in CT.
- The changes in granuloma features after contrast medium injection, the opacity and granuloma locations varied across the four horses.
- Another CT finding was the symmetric or asymmetric widening of the lateral ventricles in the brain of these horses. This refers to the size increase of the cavities in the brain where cerebrospinal fluid is produced. It can occur on one side (asymmetric) or both sides (symmetric).
Cite This Article
APA
Vink-Nooteboom M, Junker K, van den Ingh TS, Dik KJ.
(1998).
Computed tomography of cholesterinic granulomas in the choroid plexus of horses.
Vet Radiol Ultrasound, 39(6), 512-516.
https://doi.org/10.1111/j.1740-8261.1998.tb01641.x Publication
Researcher Affiliations
- Department of Radiology, Faculty of Veterinary Medicine, University of Utrecht, The Netherlands.
MeSH Terms
- Animals
- Brain Diseases / diagnostic imaging
- Brain Diseases / pathology
- Brain Diseases / veterinary
- Cerebral Ventricles / pathology
- Cerebral Ventriculography / veterinary
- Cholesteatoma / diagnostic imaging
- Cholesteatoma / pathology
- Cholesteatoma / veterinary
- Cholesterol
- Choroid Plexus / diagnostic imaging
- Choroid Plexus / pathology
- Contrast Media
- Female
- Granuloma, Foreign-Body / diagnostic imaging
- Granuloma, Foreign-Body / pathology
- Granuloma, Foreign-Body / veterinary
- Horse Diseases / diagnostic imaging
- Horse Diseases / pathology
- Horses
- Male
- Tomography, X-Ray Computed / veterinary
Citations
This article has been cited 5 times.- Wannemacher R, Knebel A, Volk HA, Hansmann F. Cholesterol granuloma in the choroid plexus of a cat. BMC Vet Res 2022 Jun 27;18(1):249.
- Santistevan L, Easley J, Ruple A, Monck S, Randall E, Wininger F, Packer RA. A pilot study of optical neuronavigation-guided brain biopsy in the horse using anatomic landmarks and fiducial arrays for patient registration. J Vet Intern Med 2020 Jul;34(4):1642-1649.
- Lloyd-Edwards RA, Willems DS, Beukers M, van den Brom-Spierenburg A, Vernooij JCM, Veraa S. Presumed cholesterinic granulomas detected on CT in horses are associated with increased lateral ventricle height and age. Vet Radiol Ultrasound 2020 May;61(3):269-278.
- Crijns CP, Baeumlin Y, De Rycke L, Broeckx BJ, Vlaminck L, Bergman EH, van Bree H, Gielen I. Intra-arterial versus intra venous contrast-enhanced computed tomography of the equine head. BMC Vet Res 2016 Jan 7;12:6.
- Chawla P, Cook L, Himmell L, Zekas L, Oglesbee M. Coextensive Meningioma and Cholesterol Granuloma in the Forebrain of a Cat. J Vet Intern Med 2015 Nov-Dec;29(6):1638-42.
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