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Lazard M, Leroux AA, Le Rest T, Chartier C, Fusellier M. What Is Your Neurologic Diagnosis? J Am Vet Med Assoc 2021; 259:1271-1274. [PMID: 34727060 DOI: 10.2460/javma.20.07.0392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Maureen Lazard
- From Service d'Imagerie Médicale, Centre Hospitalier Universitaire Vétérinaire, Oniris, Ecole Nationale Vétérinaire, Agroalimentaire et de l'Alimentation Nantes-Atlantique, Atlanpole-La Chantrerie, 44307 Nantes cedex 3, France
| | - Aurélia A Leroux
- From Clinique Équine, Centre Hospitalier Universitaire Vétérinaire, Oniris, Ecole Nationale Vétérinaire, Agroalimentaire et de l'Alimentation Nantes-Atlantique, Atlanpole-La Chantrerie, 44307 Nantes cedex 3, France
| | - Tony Le Rest
- From Clinique des Ruminants, Centre Hospitalier Universitaire Vétérinaire, Oniris, Ecole Nationale Vétérinaire, Agroalimentaire et de l'Alimentation Nantes-Atlantique, Atlanpole-La Chantrerie, 44307 Nantes cedex 3, France
| | - Christophe Chartier
- From Clinique des Ruminants, Centre Hospitalier Universitaire Vétérinaire, Oniris, Ecole Nationale Vétérinaire, Agroalimentaire et de l'Alimentation Nantes-Atlantique, Atlanpole-La Chantrerie, 44307 Nantes cedex 3, France.,From BIOEPAR, INRAE (Biologie, Epidemiologie et Analyse de Risque en Santé Animale; Institut National de Recherche pour l'Agriculture et l'Environnement), Oniris, Nantes, France
| | - Marion Fusellier
- From Service d'Imagerie Médicale, Centre Hospitalier Universitaire Vétérinaire, Oniris, Ecole Nationale Vétérinaire, Agroalimentaire et de l'Alimentation Nantes-Atlantique, Atlanpole-La Chantrerie, 44307 Nantes cedex 3, France.,From Inserm, UMR 1229, Regenerative Medicine and Skeleton, Université de Nantes, Oniris, Nantes, F-44042, France
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Precht C, Vermathen P, Henke D, Staudacher A, Lauper J, Seuberlich T, Oevermann A, Schweizer-Gorgas D. Correlative Magnetic Resonance Imaging and Histopathology in Small Ruminant Listeria Rhombencephalitis. Front Neurol 2020; 11:518697. [PMID: 33391140 PMCID: PMC7773005 DOI: 10.3389/fneur.2020.518697] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 11/12/2020] [Indexed: 02/05/2023] Open
Abstract
Background: Listeria rhombencephalitis, infection of the brainstem with Listeria monocytogenes, occurs mainly in humans and farmed ruminants and is associated with high fatality rates. Small ruminants (goats and sheep) are a large animal model due to neuropathological similarities. The purpose of this study was to define magnetic resonance imaging (MRI) features of listeria rhombencephalitis in naturally infected small ruminants and correlate them with histopathology. Secondly, the purpose of this study was to compare the results with MRI findings reported in humans. Methods: Twenty small ruminants (13 sheep and 7 goats) with listeria rhombencephalitis were prospectively enrolled and underwent in vivo MRI of the brain, including T2-weighted, fluid attenuation inversion recovery, and T1-weighted sequences pre- and post-contrast administration and postmortem histopathology. In MRI, lesions were characterized by location, extent, border definition, signal intensity, and contrast enhancement. In histopathology, the location, cell type, severity, and chronicity of inflammatory infiltrates and signs of vascular damage were recorded. In addition, histopathologic slides were matched to MRIs, and histopathologic and MRI features were compared. Results: Asymmetric T2-hyperintense lesions in the brainstem were observed in all animals and corresponded to the location and pattern of inflammatory infiltrates in histopathology. Contrast enhancement in the brainstem was observed in 10 animals and was associated with vessel wall damage and perivascular fibrin accumulation in 8 of 10 animals. MRI underestimated the extension into rostral brain parts and the involvement of trigeminal ganglia and meninges. Conclusion: Asymmetric T2-hyperintense lesions in the brainstem with or without contrast enhancement can be established as criteria for the diagnosis of listeria rhombencephalitis in small ruminants. Brainstem lesions were similar to human listeria rhombencephalitis in terms of signal intensity and location. Different from humans, contrast enhancement was a rare finding, and abscessation was not observed.
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Affiliation(s)
- Christina Precht
- Clinical Radiology, Department of Clinical Veterinary Medicine, Vetsuisse-Faculty, University of Bern, Bern, Switzerland
| | - Peter Vermathen
- Magnetic Resonance Spectroscopy and Methodology, Department of Biomedical Research, Faculty of Medicine, University of Bern, Bern, Switzerland
| | - Diana Henke
- Division of Neurology, Department of Clinical Veterinary Medicine, Vetsuisse-Faculty, University of Bern, Bern, Switzerland
| | - Anne Staudacher
- Clinical Radiology, Department of Clinical Veterinary Medicine, Vetsuisse-Faculty, University of Bern, Bern, Switzerland
| | - Josiane Lauper
- Clinic for Ruminants, Department of Clinical Veterinary Medicine, Vetsuisse-Faculty, University of Bern, Bern, Switzerland
| | - Torsten Seuberlich
- Neurocenter, Department of Clinical Research and Veterinary Public Health, Vetsuisse-Faculty, University of Bern, Bern, Switzerland
| | - Anna Oevermann
- Neurocenter, Department of Clinical Research and Veterinary Public Health, Vetsuisse-Faculty, University of Bern, Bern, Switzerland
| | - Daniela Schweizer-Gorgas
- Clinical Radiology, Department of Clinical Veterinary Medicine, Vetsuisse-Faculty, University of Bern, Bern, Switzerland
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Szafranski NM, Castel A, Hespel A, Dore V. Computed tomographic characterisation of vertebral osteomyelitis in a goat kid. VETERINARY RECORD CASE REPORTS 2020. [DOI: 10.1136/vetreccr-2019-001015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
| | - Aude Castel
- Department of Clinical SciencesUniversity of MontrealFaculté de Médécine VétérinaireSaint‐HyacintheQuebecCanada
- Department of Small Animal Clinical SciencesUniversity of TennesseeCollege of Veterinary MedicineKnoxvilleTennesseeUSA
| | - Adrien‐Maxence Hespel
- Department of Small Animal Clinical SciencesUniversity of TennesseeCollege of Veterinary MedicineKnoxvilleTennesseeUSA
| | - Vincent Dore
- Department of Clinical SciencesUniversity of MontrealFaculté de Médécine VétérinaireSaint‐HyacintheQuebecCanada
- Department of Large Animal Clinical SciencesUniversity of TennesseeCollege of Veterinary MedecineKnoxvilleTennesseeUSA
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Schweizer-Gorgas D, Henke D, Oevermann A, Lang J, Vandevelde M, Steffen F. Magnetic resonance imaging features of canine gliomatosis cerebri. Vet Radiol Ultrasound 2018; 59:180-187. [PMID: 29110365 DOI: 10.1111/vru.12570] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Revised: 07/24/2017] [Accepted: 08/10/2017] [Indexed: 11/28/2022] Open
Abstract
A retrospective, case series study was undertaken to identify magnetic resonance imaging (MRI) characteristics of gliomatosis cerebri in dogs. Fourteen dogs were included by review of histopathological records and contemporaneous MRI. On MRI, all lesions presented as ill-defined, intraaxial lesions within the left and right forebrain hemispheres with involvement of white and gray matter. Lesions presented as hyperintense areas on T2-weighted and FLAIR sequences and as hypointense or isointense areas on T1-weighted images, with mild parenchymal contrast enhancement in three dogs. Signal changes were noted in three to 10 cerebral lobes. Other most commonly affected structures were the thalamus (13), caudate nucleus (13), interthalamic adhesion (11), hypothalamus (11), callosal commissure (10), hippocampus (9), and quadrigeminal plate (8). Abnormalities within the caudal fossa were noted in 10 dogs. Solid tumor portions were identified in five dogs. The histopathological examination demonstrated in all dogs a widespread diffuse infiltration with neoplastic glial cells in white and gray matter with meningeal infiltration. Comparison between MRI and histopathology showed that all areas with signal changes on MRI corresponded to diffuse and dense infiltration with neoplastic cells. The signal intensity on T2-weighted and FLAIR images reflected the density of neoplastic cells. In all dogs, MRI underestimated lesion extent and meningeal infiltration. Involvement of the caudal fossa was not seen on MRI in three dogs. Despite this, MRI allowed identification of lesions extending into at least three cerebral lobes and therefore satisfying the criteria used for diagnosis of diffuse glioma with gliomatosis cerebri growth pattern in humans.
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Affiliation(s)
- Daniela Schweizer-Gorgas
- Division of Clinical Radiology, Department of Clinical Veterinary Medicine, Vetsuisse-Faculty, University of Bern, Bern, Switzerland
| | - Diana Henke
- Division of Neurological Sciences, Department of Clinical Veterinary Medicine, Vetsuisse-Faculty, University of Bern, Bern, Switzerland
| | - Anna Oevermann
- Division of Neurological Sciences, Department of Clinical Research and Veterinary Public Health, Vetsuisse-Faculty, University of Bern, Bern, Switzerland
| | - Johann Lang
- Division of Clinical Radiology, Department of Clinical Veterinary Medicine, Vetsuisse-Faculty, University of Bern, Bern, Switzerland
| | - Marc Vandevelde
- Division of Neurological Sciences, Department of Clinical Veterinary Medicine, Vetsuisse-Faculty, University of Bern, Bern, Switzerland
| | - Frank Steffen
- Clinical Neurology, Vetsuisse-Faculty, University of Zürich, Zürich, Switzerland
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Dieste-Pérez L, Dobak TP, Vilaplana Grosso FR, Bergmann W, Tobias TJ. Magnetic resonance imaging appearance of the brain and cervical spinal cord in an edema disease affected pig. Vet Radiol Ultrasound 2017; 60:E15-E19. [PMID: 28681491 DOI: 10.1111/vru.12524] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 03/27/2017] [Accepted: 03/27/2017] [Indexed: 11/27/2022] Open
Abstract
A 7-week-old male pig was presented with signs of a central nervous system disorder. An MRI of the head and cervical spine was performed immediately after euthanasia. The MRI revealed multifocal bilaterally symmetric T2-weighted hyperintense lesions in the brain and spinal cord, likely due to a toxic metabolic process. Histopathological examination supported the MRI findings and confirmed the diagnosis of edema disease due to Shiga-like toxin produced by Escherichia coli. This is the first case published of the MRI findings in an edema disease affected pig.
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Affiliation(s)
- Lucía Dieste-Pérez
- Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Utrecht, The Netherlands
| | - Tetyda P Dobak
- Division of Diagnostic Imaging, Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Utrecht, The Netherlands
| | | | - Wilhelmina Bergmann
- Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Utrecht, The Netherlands
| | - Tijs J Tobias
- Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Utrecht, The Netherlands
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