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Szilasi A, Dénes L, Jakab C, Erdélyi I, Resende T, Vannucci F, Csomor J, Mándoki M, Balka G. In situ hybridization of feline leukemia virus in a primary neural B-cell lymphoma. J Vet Diagn Invest 2020; 32:454-457. [PMID: 32274976 DOI: 10.1177/1040638720915449] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
An 8-y-old castrated male, outdoor European shorthair cat was presented with a history of hindlimb weakness and paralysis. Disease progression was continuous from the onset; deep algesia disappeared at the final stage. Radiography of the vertebral column was unremarkable; along with patient history and physical examination results, magnetic resonance imaging suggested inflammatory lesions in the spinal cord, although neoplasia could not be ruled out. Feline leukemia virus (FeLV) positivity was confirmed by a serum ELISA prior to euthanasia. Upon postmortem examination, hemorrhages were present in the spinal cord at the level of vertebrae T7-8. Histologic and immunohistochemical analysis revealed primary diffuse large B-cell lymphoma of the spinal cord with multifocal myelomalacia and hemorrhages. To determine the presence of a pathogen within the lesion, we developed a novel in situ hybridization protocol for FeLV (RNAscope). The reaction revealed large amounts of FeLV viral RNA in the tumor cells.
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Affiliation(s)
- Anna Szilasi
- Department of Pathology, University of Veterinary Medicine, Budapest, Hungary (Szilasi, Dénes, Mándoki, Balka).,Private veterinarian, Budapest, Hungary (Jakab).,Mátrix Histopathology and Cytology Services, Budapest, Hungary (Erdélyi).,Department of Veterinary and Biomedical Sciences (Resende), College of Veterinary Medicine, University of Minnesota, St. Paul, MN.,Veterinary Diagnostic Laboratory (Vannucci), College of Veterinary Medicine, University of Minnesota, St. Paul, MN.,1st Department of Pathology and Experimental Cancer Research, Faculty of Medicine, Semmelweis University, Budapest, Hungary (Csomor)
| | - Lilla Dénes
- Department of Pathology, University of Veterinary Medicine, Budapest, Hungary (Szilasi, Dénes, Mándoki, Balka).,Private veterinarian, Budapest, Hungary (Jakab).,Mátrix Histopathology and Cytology Services, Budapest, Hungary (Erdélyi).,Department of Veterinary and Biomedical Sciences (Resende), College of Veterinary Medicine, University of Minnesota, St. Paul, MN.,Veterinary Diagnostic Laboratory (Vannucci), College of Veterinary Medicine, University of Minnesota, St. Paul, MN.,1st Department of Pathology and Experimental Cancer Research, Faculty of Medicine, Semmelweis University, Budapest, Hungary (Csomor)
| | - Csaba Jakab
- Department of Pathology, University of Veterinary Medicine, Budapest, Hungary (Szilasi, Dénes, Mándoki, Balka).,Private veterinarian, Budapest, Hungary (Jakab).,Mátrix Histopathology and Cytology Services, Budapest, Hungary (Erdélyi).,Department of Veterinary and Biomedical Sciences (Resende), College of Veterinary Medicine, University of Minnesota, St. Paul, MN.,Veterinary Diagnostic Laboratory (Vannucci), College of Veterinary Medicine, University of Minnesota, St. Paul, MN.,1st Department of Pathology and Experimental Cancer Research, Faculty of Medicine, Semmelweis University, Budapest, Hungary (Csomor)
| | - Ildikó Erdélyi
- Department of Pathology, University of Veterinary Medicine, Budapest, Hungary (Szilasi, Dénes, Mándoki, Balka).,Private veterinarian, Budapest, Hungary (Jakab).,Mátrix Histopathology and Cytology Services, Budapest, Hungary (Erdélyi).,Department of Veterinary and Biomedical Sciences (Resende), College of Veterinary Medicine, University of Minnesota, St. Paul, MN.,Veterinary Diagnostic Laboratory (Vannucci), College of Veterinary Medicine, University of Minnesota, St. Paul, MN.,1st Department of Pathology and Experimental Cancer Research, Faculty of Medicine, Semmelweis University, Budapest, Hungary (Csomor)
| | - Talita Resende
- Department of Pathology, University of Veterinary Medicine, Budapest, Hungary (Szilasi, Dénes, Mándoki, Balka).,Private veterinarian, Budapest, Hungary (Jakab).,Mátrix Histopathology and Cytology Services, Budapest, Hungary (Erdélyi).,Department of Veterinary and Biomedical Sciences (Resende), College of Veterinary Medicine, University of Minnesota, St. Paul, MN.,Veterinary Diagnostic Laboratory (Vannucci), College of Veterinary Medicine, University of Minnesota, St. Paul, MN.,1st Department of Pathology and Experimental Cancer Research, Faculty of Medicine, Semmelweis University, Budapest, Hungary (Csomor)
| | - Fabio Vannucci
- Department of Pathology, University of Veterinary Medicine, Budapest, Hungary (Szilasi, Dénes, Mándoki, Balka).,Private veterinarian, Budapest, Hungary (Jakab).,Mátrix Histopathology and Cytology Services, Budapest, Hungary (Erdélyi).,Department of Veterinary and Biomedical Sciences (Resende), College of Veterinary Medicine, University of Minnesota, St. Paul, MN.,Veterinary Diagnostic Laboratory (Vannucci), College of Veterinary Medicine, University of Minnesota, St. Paul, MN.,1st Department of Pathology and Experimental Cancer Research, Faculty of Medicine, Semmelweis University, Budapest, Hungary (Csomor)
| | - Judit Csomor
- Department of Pathology, University of Veterinary Medicine, Budapest, Hungary (Szilasi, Dénes, Mándoki, Balka).,Private veterinarian, Budapest, Hungary (Jakab).,Mátrix Histopathology and Cytology Services, Budapest, Hungary (Erdélyi).,Department of Veterinary and Biomedical Sciences (Resende), College of Veterinary Medicine, University of Minnesota, St. Paul, MN.,Veterinary Diagnostic Laboratory (Vannucci), College of Veterinary Medicine, University of Minnesota, St. Paul, MN.,1st Department of Pathology and Experimental Cancer Research, Faculty of Medicine, Semmelweis University, Budapest, Hungary (Csomor)
| | - Míra Mándoki
- Department of Pathology, University of Veterinary Medicine, Budapest, Hungary (Szilasi, Dénes, Mándoki, Balka).,Private veterinarian, Budapest, Hungary (Jakab).,Mátrix Histopathology and Cytology Services, Budapest, Hungary (Erdélyi).,Department of Veterinary and Biomedical Sciences (Resende), College of Veterinary Medicine, University of Minnesota, St. Paul, MN.,Veterinary Diagnostic Laboratory (Vannucci), College of Veterinary Medicine, University of Minnesota, St. Paul, MN.,1st Department of Pathology and Experimental Cancer Research, Faculty of Medicine, Semmelweis University, Budapest, Hungary (Csomor)
| | - Gyula Balka
- Department of Pathology, University of Veterinary Medicine, Budapest, Hungary (Szilasi, Dénes, Mándoki, Balka).,Private veterinarian, Budapest, Hungary (Jakab).,Mátrix Histopathology and Cytology Services, Budapest, Hungary (Erdélyi).,Department of Veterinary and Biomedical Sciences (Resende), College of Veterinary Medicine, University of Minnesota, St. Paul, MN.,Veterinary Diagnostic Laboratory (Vannucci), College of Veterinary Medicine, University of Minnesota, St. Paul, MN.,1st Department of Pathology and Experimental Cancer Research, Faculty of Medicine, Semmelweis University, Budapest, Hungary (Csomor)
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