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Pintus D, Marruchella G, Masia M, Maestrale C, Cancedda MG, Contu C, Macciocu S, Ligios C. Glioblastoma with oligodendroglioma component in a ewe. J Vet Diagn Invest 2016; 28:449-54. [PMID: 27154317 DOI: 10.1177/1040638716644646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Herein we describe a glioblastoma partially occupying the telencephalic portion of the left cerebral hemisphere of a Sardinian (syn. Sarda) breed ewe. Microscopically, the mass consisted of a pleomorphic spindle-shaped cell component organized as bundles and numerous small areas of round cells displaying an oligodendroglioma-like aspect. A high number of mitotic figures, large areas of necrosis surrounded by pseudopalisading glial cells, and multiple foci of dystrophic mineralization were also observed. The neoplasm was highly vascularized with glomerular vascular proliferation. Immunohistochemically, neoplastic cells proved to be strongly positive for nestin, vimentin, and olig-2, whereas they were invariably negative for synaptophysin. Few neoplastic cells and reactive astrocytes, mainly located at the edge of necrotic foci, proved to be positive for glial fibrillary acidic protein, whereas glomerular vascular proliferation was clearly positive for factor VIII and vascular endothelial growth factor. Gene sequencing analysis demonstrated homozygous p53 tumor suppressor gene (TP53) point mutations in the DNA-binding domain located in exon 8. The presence of round cells immunoreactive for olig-2 demonstrated that this tumor is a glioblastoma with oligodendroglioma component. Our pathologic, immunohistochemical, and molecular findings largely overlap those previously reported in humans and dogs.
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Affiliation(s)
- Davide Pintus
- Istituto Zooprofilattico Sperimentale della Sardegna "G. Pegreffi", Sassari, Italy (Pintus, Masia, Maestrale, Cancedda, Contu, Macciocu, Ligios)Facoltà di Medicina Veterinaria, Università degli Studi di Teramo, Teramo, Italy (Marruchella)
| | - Giuseppe Marruchella
- Istituto Zooprofilattico Sperimentale della Sardegna "G. Pegreffi", Sassari, Italy (Pintus, Masia, Maestrale, Cancedda, Contu, Macciocu, Ligios)Facoltà di Medicina Veterinaria, Università degli Studi di Teramo, Teramo, Italy (Marruchella)
| | - Mariangela Masia
- Istituto Zooprofilattico Sperimentale della Sardegna "G. Pegreffi", Sassari, Italy (Pintus, Masia, Maestrale, Cancedda, Contu, Macciocu, Ligios)Facoltà di Medicina Veterinaria, Università degli Studi di Teramo, Teramo, Italy (Marruchella)
| | - Caterina Maestrale
- Istituto Zooprofilattico Sperimentale della Sardegna "G. Pegreffi", Sassari, Italy (Pintus, Masia, Maestrale, Cancedda, Contu, Macciocu, Ligios)Facoltà di Medicina Veterinaria, Università degli Studi di Teramo, Teramo, Italy (Marruchella)
| | - Maria Giovanna Cancedda
- Istituto Zooprofilattico Sperimentale della Sardegna "G. Pegreffi", Sassari, Italy (Pintus, Masia, Maestrale, Cancedda, Contu, Macciocu, Ligios)Facoltà di Medicina Veterinaria, Università degli Studi di Teramo, Teramo, Italy (Marruchella)
| | - Claudia Contu
- Istituto Zooprofilattico Sperimentale della Sardegna "G. Pegreffi", Sassari, Italy (Pintus, Masia, Maestrale, Cancedda, Contu, Macciocu, Ligios)Facoltà di Medicina Veterinaria, Università degli Studi di Teramo, Teramo, Italy (Marruchella)
| | - Simona Macciocu
- Istituto Zooprofilattico Sperimentale della Sardegna "G. Pegreffi", Sassari, Italy (Pintus, Masia, Maestrale, Cancedda, Contu, Macciocu, Ligios)Facoltà di Medicina Veterinaria, Università degli Studi di Teramo, Teramo, Italy (Marruchella)
| | - Ciriaco Ligios
- Istituto Zooprofilattico Sperimentale della Sardegna "G. Pegreffi", Sassari, Italy (Pintus, Masia, Maestrale, Cancedda, Contu, Macciocu, Ligios)Facoltà di Medicina Veterinaria, Università degli Studi di Teramo, Teramo, Italy (Marruchella)
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Woolford L, Lahunta AD, Baiker K, Dobson E, Summers BA. Ventricular and Extraventricular Ependymal Tumors in 18 Cats. Vet Pathol 2012; 50:243-51. [DOI: 10.1177/0300985812452580] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Ependymal tumors are reported rarely in domestic animals. The aims of this study were to examine the clinical and pathologic features of ventricular and extraventricular ependymomas and subependymomas in 18 domestic cats examined between 1978 and 2011. Parameters examined included age, sex, breed, clinical signs, and macroscopic and histopathologic features. The mean age of affected cats was 9 years, 4 months; median age, 8.5 years. There were 8 female and 4 male cats, and 6 cats for which sex was not recorded. Breeds included 10 domestic shorthaired, 2 domestic longhaired, 1 Persian, and 1 Siamese. Clinical signs included altered mentation or behavior, seizures, circling, propulsive gait, generalized discomfort, and loss of condition. The tumors often formed intraventricular masses and usually arose from the lining of the lateral or third ventricles, followed by the fourth ventricle, mesencephalic aqueduct, and spinal cord central canal. Three tumors were extraventricular, forming masses within the cerebrum and adjacent subarachnoid space. Histologically, 15 tumors were classified as variants of ependymomas (classic, papillary, tanycytic, or clear cell) and 3 as subependymomas. Tumors were generally well demarcated; however, 6 ependymomas focally or extensively infiltrated the adjacent neural parenchyma. Characteristic perivascular pseudorosettes were observed in all ependymomas; true rosettes were less common. Some tumors had areas of necrosis, mineralization, cholesterol clefts, and/or hemorrhage. This cohort study of feline ependymal tumors includes subependymoma and primary extraventricular ependymoma, variants not previously described in the veterinary literature but well recognized in humans.
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Affiliation(s)
- L. Woolford
- University of Adelaide, Roseworthy, Australia
| | | | - K. Baiker
- Royal Veterinary College, London, UK
| | - E. Dobson
- College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - B. A. Summers
- College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
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Merk S, Meyer H, Greiser-Wilke I, Sprague LD, Neubauer H. Detection of Burkholderia cepacia DNA from artificially infected EDTA-blood and lung tissue comparing different DNA isolation methods. ACTA ACUST UNITED AC 2006; 53:281-5. [PMID: 16907960 DOI: 10.1111/j.1439-0450.2006.00956.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Bacterial DNA (Burkholderia cepacia) was prepared from artificially infected equine ethylenediaminetetraacetic acid (EDTA)-blood and lung tissue by using four standard methods (lysis buffer containing proteinase K, phenol/chloroform/isoamylalcohol-extraction, microwave-treatment, heat treatment) and six commercially available kits (Puregene, High Pure PCR Template Preparation Kit, InstaGene, QiaAmp Tissue Kit, DNAzol and Elu-Quik). After a subsequent polymerase chain reaction (PCR), their efficacy and sensitivity were compared. Concerning the detection limits, the simple lysis with a proteinase K-containing buffer led to the best results for EDTA-blood as well as for artificially infected lung tissue.
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Affiliation(s)
- S Merk
- Institut fuer Medizinische Informatik und Biomathematik, Domagkstrasse 9, 48149 Munster, Germany
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Elsinghorst TAM. First cases of animal diseases published in 2005. Vet Q 2005; 27:127-37. [PMID: 16238112 DOI: 10.1080/01652176.2005.9695193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
Abstract
In 2003, Veterinary Quarterly started with the publication of a series of articles reviewing reports on "first cases" of animal diseases. Till now six articles have been published. They were arranged in order of animal species. Each article concerned only one species. Starting at this seventh publication, each article discusses "first cases" on more than one animal species. In this article 15 cases published in 2005 are discussed: one in birds, two in cats, three in cattle, four in dogs, two in goats, one in hares, and two in horses. Of each case a short introduction, the bibliographical data of the publication, the abstract of the author(s) (except one case) and some additional information (mainly) derived from the article are given.
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Neubauer H, Sprague LD, Zacharia R, Tomaso H, Al Dahouk S, Wernery R, Wernery U, Scholz HC. Serodiagnosis of Burkholderia mallei infections in horses: state-of-the-art and perspectives. ACTA ACUST UNITED AC 2005; 52:201-5. [PMID: 16115091 DOI: 10.1111/j.1439-0450.2005.00855.x] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Burkholderia mallei causes glanders or farcy in solipeds, a disease that must be reported to the OIE (Office International des Epizooties, Paris, France). The number of reported outbreaks has increased steadily during the last decade. Serodiagnosis is hampered by the considerable number of false-positives and -negatives of the internationally prescribed tests. The major problem leading to low sensitivity and specificity of complement fixation test (CFT) and enzyme-linked immunosorbent assay (ELISA) has been linked to the test antigens currently used, i.e. crude preparations of whole cells. Future perspectives for the development and evaluation of serological test kits using well-characterized single antigens are discussed in the light of recent molecular research on B. mallei and the closely related saprozoonotic agent B. pseudomallei.
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Affiliation(s)
- H Neubauer
- Institut für Mikrobiologie der Bundeswehr, Neuherbergstr. 11, 80937 München, Germany.
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Elsinghorst TAM. New findings on animal diseases published since 2003. 1. Dogs. Vet Q 2004; 26:18-24. [PMID: 15072138 DOI: 10.1080/01652176.2004.9695165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
Abstract
This is the first article of a series of papers reviewing "new findings" on animal diseases. The articles are arranged in order of animal species. This article reviews seven publications on new findings on or directly related to dog diseases. The following seven cases are discussed: Canine sarcocystosis in Central America. Copper accumulation in a Skye terrier: Antemortem diagnosis and cytoprotective bile acid therapy. Keratinocyte culture and use of a cultured epidermal autograft. Line 1 insertion mutation in Factor IX of dogs with hemophilia B. Not previously described localization of the lesions in stifle osteochondritis dissecans. Panniculitis associated with pancreatitis: Antemortem diagnosis. Primary polydipsia associated with (and induced by?) gastrointestinal disease. After a short introduction, the bibliographical data, the abstract of the author(s) and some additional information derived from the article are given.
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