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Inanaga M, Yoneji W, Ozaki K. Localized pleural mesothelioma in a dog. J Comp Pathol 2023; 207:25-29. [PMID: 37922825 DOI: 10.1016/j.jcpa.2023.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/18/2023] [Accepted: 09/29/2023] [Indexed: 11/07/2023]
Abstract
Malignant mesotheliomas with localized growth are extremely rare in dogs. A 9-year-old male dog presented with a localized tumour that originated from the parietal pleura and had polypoid growth in the thoracic cavity. Histological examination revealed that the tumour consisted of tubular formations with scattered cysts and minimal papillary growth pattern. Neoplastic cells were immunopositive for mesothelial markers (calretinin and Wilms' tumour gene 1) and negative for carcinoma markers (thyroid transcription factor 1 and tumour protein 63). The animal was alive with no recurrence or metastasis/dissemination 11 months after surgery. To the best of our knowledge, this is the first report of a localized mesothelioma in a dog without metastasis/dissemination and highlights the value of mesothelial markers for an accurate diagnosis.
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Affiliation(s)
- Minori Inanaga
- Laboratory of Pathology, Faculty of Pharmaceutical Science, Setsunan University, 45-1 Nagaotohgecho, Hirakata, Osaka 573-0101, Japan
| | - Wakana Yoneji
- Nara Animal Referral Clinic, 5-20-7 Mitsugarasu, Nara 631-0061, Japan
| | - Kiyokazu Ozaki
- Laboratory of Pathology, Faculty of Pharmaceutical Science, Setsunan University, 45-1 Nagaotohgecho, Hirakata, Osaka 573-0101, Japan.
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Izzati UZ, Inanaga M, Hoa NT, Nueangphuet P, Myint O, Truong QL, Lan NT, Norimine J, Hirai T, Yamaguchi R. Pathological investigation and viral antigen distribution of emerging African swine fever in Vietnam. Transbound Emerg Dis 2020; 68:2039-2050. [PMID: 32979250 PMCID: PMC8359366 DOI: 10.1111/tbed.13851] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 07/29/2020] [Accepted: 09/18/2020] [Indexed: 11/30/2022]
Abstract
African swine fever (ASF) is emerging in Vietnam and poses a continuing severe threat to the swine industry. A histopathological study of clinical samples collected during the May to July 2019 outbreak of ASF was performed to determine the characteristic lesions. We analysed samples from eight ASFV‐infected farms. Histopathological results revealed the characteristic lesions of the acute to the subacute clinical form of ASF. Immunohistochemical results showed ASFV viral antigen distribution in mononuclear cells/macrophage in various organs, hepatocytes and renal tubular epithelium. Molecular analysis of partial capsid protein 72 gene revealed that ASFV strain from the eight separate outbreaks belonged to genotype II.
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Affiliation(s)
- Uda Zahli Izzati
- Department of Veterinary Pathology, Faculty of Agriculture, University of Miyazaki, Miyazaki City, Japan
| | - Minori Inanaga
- Department of Veterinary Pathology, Faculty of Agriculture, University of Miyazaki, Miyazaki City, Japan
| | - Nguyen Thi Hoa
- Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Hanoi, Vietnam
| | - Phawut Nueangphuet
- Department of Veterinary Pathology, Faculty of Agriculture, University of Miyazaki, Miyazaki City, Japan
| | - Ohnmar Myint
- Department of Veterinary Pathology, Faculty of Agriculture, University of Miyazaki, Miyazaki City, Japan
| | - Quang Lam Truong
- Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Hanoi, Vietnam
| | - Nguyen Thi Lan
- Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Hanoi, Vietnam
| | - Junzo Norimine
- Department of Veterinary Pathology, Faculty of Agriculture, University of Miyazaki, Miyazaki City, Japan
| | - Takuya Hirai
- Department of Veterinary Pathology, Faculty of Agriculture, University of Miyazaki, Miyazaki City, Japan
| | - Ryoji Yamaguchi
- Department of Veterinary Pathology, Faculty of Agriculture, University of Miyazaki, Miyazaki City, Japan
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