1
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Percival A, Lopez DJ, Miller A, Scrivani PV. Computed tomography of suppurative and neoplastic diseases involving the canine omenta and omental bursa. Vet Radiol Ultrasound 2023; 64:851-863. [PMID: 37496369 DOI: 10.1111/vru.13283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/12/2023] [Accepted: 07/05/2023] [Indexed: 07/28/2023] Open
Abstract
The greater and lesser omenta are fused peritoneal folds that largely delimit the omental bursa (lesser peritoneal cavity). The omental bursa is a potential space within the abdominal cavity that communicates with the greater peritoneal cavity via the omental (epiploic) foramen: it is subdivided into the omental vestibule, caudal omental recess, and splenic recess. Aims of this retrospective case series study were to describe the frequencies of CT findings of dogs with confirmed inflammatory or neoplastic disease of the omenta, omental bursa, or both. The sample included seven adult, medium-to-large breed dogs. All had fluid in the greater peritoneal cavity and 5/7 (71%) dogs also had fluid in the omental bursa. Primary suppurative inflammatory disease was present in three dogs, each dog had a large abscess with central gas in either the omental vestibule (two dogs) or caudal omental recess (one dog). Both abscesses in the omental vestibule arose from the papillary process of the caudate liver lobe and were surgically removed without complication. Neoplasia was present in four dogs and either arose from omentum (hemangiosarcoma, carcinoma) or infiltrated the omentum from an adjacent organ (splenic leiomyosarcoma, gastric adenocarcinoma). Neoplasms created mass-like tumors, infiltrative tumors, or both and had variable distribution (focal, multifocal, or locally extensive). All dogs with neoplasia were euthanized. CT signs of inflammatory and neoplastic disease overlapped, but the presence of gas might prioritize abscessation. CT signs helped decide feasibility of surgery based on extent of local invasion, especially involvement of structures passing through the porta hepatis.
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Affiliation(s)
- Aaron Percival
- Department of Clinical Sciences, Cornell University, Ithaca, New York, USA
| | - Daniel J Lopez
- Department of Clinical Sciences, Cornell University, Ithaca, New York, USA
| | - Allison Miller
- Department of Clinical Sciences, Cornell University, Ithaca, New York, USA
| | - Peter V Scrivani
- Department of Clinical Sciences, Cornell University, Ithaca, New York, USA
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2
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Sato Y, Elbadawy M, Suzuki K, Tsunedomi R, Nagano H, Ishihara Y, Yamamoto H, Azakami D, Uchide T, Nabeta R, Fukushima R, Abugomaa A, Kaneda M, Yamawaki H, Shinohara Y, Usui T, Sasaki K. Establishment of an experimental model of canine malignant mesothelioma organoid culture using a three-dimensional culture method. Biomed Pharmacother 2023; 162:114651. [PMID: 37030135 DOI: 10.1016/j.biopha.2023.114651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 03/21/2023] [Accepted: 03/31/2023] [Indexed: 04/09/2023] Open
Abstract
Canine malignant mesothelioma (cMM) is a rare and drug-resistant malignant tumor. Due to few patients and experimental models, there have not been enough studies to demonstrate the pathogenesis of the disease and novel effective treatment for cMM. Since cMM resembles human MM (hMM) in histopathological characteristics, it is also considered a promising research model of hMM. Compared with conventional 2-dimensional (2D) culture methods, 3-dimensional (3D) organoid culture can recapitulate the properties of original tumor tissues. However, cMM organoids have never been developed. In the present study, we for the first time generated cMM organoids using the pleural effusion samples. Organoids from individual MM dogs were successfully generated. They exhibited the characteristics of MM and expressed mesothelial cell markers, such as WT-1 and mesothelin. The sensitivity to anti-cancer drugs was different in each strain of cMM organoids. RNA sequencing analysis showed cell adhesion molecule pathways were specifically upregulated in cMM organoids compared with their corresponding 2D cultured cells. Among these genes, the expression level of E-cadherin was drastically higher in the organoids than that in the 2D cells. In conclusion, our established cMM organoids might become a new experimental tool to provide new insights into canine and human MM therapy.
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Affiliation(s)
- Yomogi Sato
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Mohamed Elbadawy
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; Department of Pharmacology, Faculty of Veterinary Medicine, Benha University, 13736, Moshtohor, Toukh, Elqaliobiya, Egypt.
| | - Kazuhiko Suzuki
- Laboratory of Veterinary Toxicology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Ryouichi Tsunedomi
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan
| | - Hiroaki Nagano
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan
| | - Yusuke Ishihara
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Haru Yamamoto
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Daigo Azakami
- Laboratory of Veterinary Clinical Oncology, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Tsuyoshi Uchide
- Laboratory of Veterinary Molecular Pathology and Therapeutics, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Rina Nabeta
- Laboratory of Veterinary Molecular Pathology and Therapeutics, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Ryuji Fukushima
- Animal Medical Emergency Center, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei, Tokyo 184-8588, Japan
| | - Amira Abugomaa
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; Faculty of Veterinary Medicine, Mansoura University, 35516 Mansoura, Egypt
| | - Masahiro Kaneda
- Laboratory of Veterinary Anatomy, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Hideyuki Yamawaki
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, 35-1, Higashi 23 ban-cho, Towada, Aomori 034-8628, Japan
| | - Yuta Shinohara
- Pet Health & Food Division, Iskara Industry CO., LTD, 1-14-2, Nihonbashi, Chuo-ku, Tokyo, 103-0027, Japan
| | - Tatsuya Usui
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan.
| | - Kazuaki Sasaki
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
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3
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Lajoinie M, Chavalle T, Floch F, Sayag D, Lanore D, Ponce F, Chamel G. Outcome of dogs treated with chemotherapy for mesothelioma: A retrospective clinical study on 40 cases and a literature review. Vet Comp Oncol 2022; 20:825-835. [PMID: 35633310 PMCID: PMC9796774 DOI: 10.1111/vco.12843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 01/07/2023]
Abstract
Mesothelioma is an uncommon cancer in dogs for which there is no established standard of care. Chemotherapy is often suggested despite no definitive proof of efficacy. The aim of this study was to evaluate the impact of chemotherapy on survival of dogs with mesothelioma. A retrospective multicentric study was carried out. To be included, dogs needed to present an evocative clinical evolution and a morphological diagnosis of mesothelioma. Exclusion of other cause of effusion and complete clinical follow-up were also required. Fourty dogs were included, 27 received chemotherapy (group 1) and 13 did not (group 2). Groups were heterogeneous regarding the proportion of animals undergoing surgery as part of their treatment (16 in group 1, 2 in group 2; p = .016) and homogeneous otherwise. Univariate analysis showed that dogs from group 1 survived significantly longer than dogs from group 2 (MST: 366 vs. 74 days; p < .001). Complete resolution of effusion after the first chemotherapy administration positively correlated with survival in group 1 (MST: 415 vs. 160 days; p < .01). All other variable tested had no significant impact on survival in univariate analysis, but dogs undergoing surgery and dogs having serous membranes' modification at medical imaging tended to survive longer. Multivariate analysis confirmed that chemotherapy was the sole variable independently associated with survival in our study (odds ratio 5.57-6.12; p < .01).
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Affiliation(s)
- Mathilde Lajoinie
- Service de cancérologie, VetAgro SupUniversité de Lyon, UR ICEMarcy‐l'EtoileFrance
| | - Thomas Chavalle
- Service de cancérologie, VetAgro SupUniversité de Lyon, UR ICEMarcy‐l'EtoileFrance
| | | | - David Sayag
- ONCOnseil—Unité d'expertise en oncologie vétérinaireToulouseFrance
| | - Didier Lanore
- Pôle Santé ChanturgueClermont‐FerrandFrance,AllianceBordeauxFrance
| | - Frédérique Ponce
- Service de cancérologie, VetAgro SupUniversité de Lyon, UR ICEMarcy‐l'EtoileFrance
| | - Gabriel Chamel
- Service de cancérologie, VetAgro SupUniversité de Lyon, UR ICEMarcy‐l'EtoileFrance,ArmoniaVillefontaineFrance
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4
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Yang ZR, Chen ZG, Ji ZH, Lin YL, Zhang J, Ma R, Li Z, Jiang X, Chen Q, Du XM, Li Y. Establishment and histopathological study of patient-derived xenograft models and primary cell lines of epithelioid malignant peritoneal mesothelioma. Exp Anim 2021; 70:225-235. [PMID: 33473097 PMCID: PMC8150237 DOI: 10.1538/expanim.20-0119] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Malignant peritoneal mesothelioma (MPM) is a rare malignancy with few experimental models. This study used the human surgical specimen to establish MPM
patient-derived xenograft (PDX) models and primary cell lines to provide a study platform for MPM in vitro and in vivo, and
conducted histopathological analysis. Our study used the experimental peritoneal cancer index (ePCI) score to evaluate gross pathology, and the results showed
that the ePCI score of the female and male nude mice were 8.80 ± 1.75 and 9.20 ± 1.81 (P=0.6219), respectively. The Hematoxylin and eosin (HE)
staining of animal models showed that the tumor was epithelioid mesothelioma and invaded multiple organs. Immunohistochemistry (IHC) staining showed that
Calretinin, Cytokeratin 5/6, WT-1 and Ki-67 were all positive. The Swiss-Giemsa and Immunofluorescence (IF) staining of primary cell lines were also consistent
with the pathological characteristics of mesothelioma. We also performed the whole-exome sequencing (WES) to identify the mutant genes between models and the
patient. And the results showed that 21 mutant genes were shared between the two groups, and the genes related to tumorigenesis and development including
BAP1, NF2, MTBP, NECTIN2, CDC23, LRPPRC,
TRIM25, and DHRS2. In conclusion, the PDX models and primary cell lines of MPM were successfully established with the
epithelioid mesothelioma identity confirmed by histopathological evidence. Moreover, our study has also illustrated the shared genomic profile between models
and the patient.
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Affiliation(s)
- Zhi-Ran Yang
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, No. 10 Tieyi Road, Yangfangdian Street, Haidian District, Beijing 100038, China
| | - Zhi-Gao Chen
- Thorgene Co., Ltd., Yizhuang Biomedical Park, Daxing District, Beijing, Beijing, China
| | - Zhong-He Ji
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, No. 10 Tieyi Road, Yangfangdian Street, Haidian District, Beijing 100038, China
| | - Yu-Lin Lin
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, No. 10 Tieyi Road, Yangfangdian Street, Haidian District, Beijing 100038, China
| | - Jue Zhang
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, No. 10 Tieyi Road, Yangfangdian Street, Haidian District, Beijing 100038, China
| | - Ru Ma
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, No. 10 Tieyi Road, Yangfangdian Street, Haidian District, Beijing 100038, China
| | - Zhao Li
- Department of Pathology, Beijing Shijitan Hospital, Capital Medical University, Capital Medical University, No. 10 Tieyi Road, Yangfangdian Street, Haidian District, Beijing, China
| | - Xi Jiang
- Department of Pathology, Beijing Shijitan Hospital, Capital Medical University, Capital Medical University, No. 10 Tieyi Road, Yangfangdian Street, Haidian District, Beijing, China
| | - Qian Chen
- Thorgene Co., Ltd., Yizhuang Biomedical Park, Daxing District, Beijing, Beijing, China
| | - Xue-Mei Du
- Department of Pathology, Beijing Shijitan Hospital, Capital Medical University, Capital Medical University, No. 10 Tieyi Road, Yangfangdian Street, Haidian District, Beijing, China
| | - Yan Li
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, No. 10 Tieyi Road, Yangfangdian Street, Haidian District, Beijing 100038, China.,Department of Pathology, Beijing Shijitan Hospital, Capital Medical University, Capital Medical University, No. 10 Tieyi Road, Yangfangdian Street, Haidian District, Beijing, China
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5
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Kim SM, Oh Y, Oh SH, Han JH. Primary diffuse malignant peritoneal mesothelioma in a striped skunk (Mephitis mephitis). J Vet Med Sci 2015; 78:485-7. [PMID: 26568187 PMCID: PMC4829522 DOI: 10.1292/jvms.15-0377] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A 10-year-old female striped skunk (Mephitis mephitis) was admitted with
severe abdominal distension and lethargy. Cytological examination of the peritoneal fluid
revealed activated mesothelial cells. At necropsy, numerous growing together, projecting,
2 to 20 mm in diameter tawny to white masses were scattered throughout the peritoneum
including the mesentery, omentum and intestinal serosa. Microscopically, the tumor was
composed of prominent papillo-tubular structures, and immunohistochemically, the spindle
to polygonal-shaped tumor cells with nuclear polymorphism were strongly reactive for
calretinin. Based on those diagnostic features, the neoplasia was diagnosed as malignant
mesothelioma. This is the first case report of mesothelioma in the skunk.
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Affiliation(s)
- Su-Min Kim
- Department of Veterinary Pathology, College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon-si, Gangwon-do 24341, Republic of Korea
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6
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Espino L, Vazquez S, Faílde D, Barreiro A, Miño N, Goicoa A. Localized pleural mesothelioma causing cranial vena cava syndrome in a dog. J Vet Diagn Invest 2010; 22:309-12. [PMID: 20224100 DOI: 10.1177/104063871002200228] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
A 9-year-old female crossbred dog was presented to the Hospital Universitario Veterinario Rof Codina (Universidad de Santiago de Compostela, Lugo, Spain) for acute onset of severe, progressive swelling of the head, neck, and cranial trunk. Survey radiographs and ultrasonography revealed a large, heterogeneous mass in the cranial mediastinum, compressing or growing into a large blood vessel within the cranial mediastinum and displacing the heart dorsocaudally. At postmortem examination, the mass was diagnosed as a large, localized mesothelioma. Localized mesotheliomas are rare neoplasms in dogs but should be considered as a possible differential diagnosis for cranial vena cava syndrome. The anatomic distribution and clinical features of mesothelioma in the present report are similar to other cases in humans.
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Affiliation(s)
- Luciano Espino
- Hospital Universitario Veterinario Rof Codina, Estrada da Granxa s/n, 27002 Lugo, Spain.
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7
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Elwood C, Devauchelle P, Elliott J, Freiche V, German AJ, Gualtieri M, Hall E, den Hertog E, Neiger R, Peeters D, Roura X, Savary-Bataille K. Emesis in dogs: a review. J Small Anim Pract 2010; 51:4-22. [PMID: 20137004 PMCID: PMC7167204 DOI: 10.1111/j.1748-5827.2009.00820.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/09/2009] [Indexed: 11/26/2022]
Abstract
Emesis is a common presenting sign in small animal practice. It requires a rational approach to management that is based upon a sound understanding of pathophysiology combined with logical decision making. This review, which assesses the weight of available evidence, outlines the physiology of the vomiting reflex, causes of emesis, the consequences of emesis and the approach to clinical management of the vomiting dog. The applicability of diagnostic testing modalities and the merit of traditional approaches to management, such as dietary changes, are discussed. The role and usefulness of both traditional and novel anti-emetic drugs is examined, including in specific circumstances such as following cytotoxic drug treatment. The review also examines areas in which common clinical practice is not necessarily supported by objective evidence and, as such, highlights questions worthy of further clinical research.
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Affiliation(s)
- C Elwood
- Davies Veterinary Specialists, Manor Farm Business Park, Higham Gobion, Hitchin, Hertfordshire SG5 3HR
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Abstract
This paper reports on an unusual case of pleural epitheloid mesothelioma in a nine-month-old male, mixed breed dog. The dog was presented in-extremis and, on post mortem examination, multiple, exophytic, frequently pedunculated, yellowish-red, soft to firm masses ranging from 3 mm to 6 cm in diameter were diffusely distributed over, and attached to, the pericardial and parietal pleural surfaces. Microscopically, these masses consisted of round to partially polygonalshaped, anaplastic cells with minimal cytoplasm and hyperchromatic nuclei covering papillomatous projections or as part of more densely cellular masses. A supporting fibrovascular stroma and mitotic figures were also evident. Constituent tumour cells were labeled positively with antibodies against both vimentin and cytokeratin. In contrast, the same cells exhibited equivocal labeling with an antibody directed against calretinin antigen and did not label with antibodies against carcinoembryonic antigen (CEA) and milk fat globule-related antigen (MFGRA). Such tumours are rare in dogs, particularly in such a young animal.
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Affiliation(s)
- Sevil Atalay Vural
- Department of Pathology, Faculty of Veterinary Medicine, Ankara University, 06110 Diskapi/Ankara, Turkey.
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9
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Krametter R, Bago Z, Floeck M, Baumgartner W. Abdominal mesothelioma in a goat. N Z Vet J 2005; 52:293-6. [PMID: 15768126 DOI: 10.1080/00480169.2004.36442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
CASE HISTORY An 8-year-old female Toggenburg goat was presented with a history of reduced appetite, ruminal tympany, and abdominal enlargement of 2 weeks' duration. CLINICAL FINDINGS The abdomen was markedly distended and contained a large amount of fluid, demonstrated using ultrasonography, along with echogenic masses on the ventral ruminal and reticular walls. The findings were confirmed at exploratory laparotomy, where together with excessive peritoneal fluid, numerous nodules were found blanketing the peritoneum. PATHOLOGICAL FINDINGS AND DIAGNOSIS: Numerous partially coalescing, white-grey nodules up to 3 cm in diameter covered the peritoneum. A biphasic mesothelioma consisting of epithelial and mesenchymal components was demonstrated by histopathology and immunohistochemistry. CLINICAL RELEVANCE Primary tumours of the peritoneum are rare and occur in many animal species. They must be differentiated from chronic granulomatous peritonitis caused by bacteria (e.g. tuberculosis or 'pearl disease'), parasites and metastatic tumours.
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Affiliation(s)
- R Krametter
- II. Medical University Clinic for Ruminants and Swine, University of Veterinary Medicine Vienna, Veterinärplatz 1, A-1210 Vienna, Austria.
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10
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Sato T, Miyoshi T, Shibuya H, Fujikura J, Koie H, Miyazaki Y. Peritoneal Biphasic Mesothelioma in a Dog. ACTA ACUST UNITED AC 2005; 52:22-5. [PMID: 15703007 DOI: 10.1111/j.1439-0442.2004.00680.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A 10-year-old German shepherd dog was presented with a severe abdominal distension. At necropsy, whitish and firm mass was observed in the mesentery with metastases in the pericardium and pleura. The intestinal serosa was thickened and stiff. Histologically, the tumours were composed of a biphasic population of cells, which reacted with cytokeratin, vimentin and Wilms' tumour 1 protein antibody. Ultrastructural examination revealed numerous microvilli, abundant rough endoplasmic reticulum, numerous desmosomes and bundles of microfilament. The tumour was classified as biphasic mesothelioma of peritoneal origin.
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Affiliation(s)
- T Sato
- Laboratory of Veterinary Pathology, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa 252-8510, Japan.
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Geninet C, Bernex F, Rakotovao F, Crespeau FL, Parodi AL, Fontaine JJ. Sclerosing Peritoneal Mesothelioma in a Dog - A Case Report. ACTA ACUST UNITED AC 2003; 50:402-5. [PMID: 14633218 DOI: 10.1046/j.0931-184x.2003.00566.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A case of peritoneal sclerosing mesothelioma in a 3-year-old German shepherd dog is reported. The dog presented a severe abdominal distension. Cytological examination of the peritoneal fluid revealed anaplastic epithelioid cells. Necropsy findings revealed an irregular-shaped mass attached to the pancreas and stomach with numerous nodules covering the intestinal and urinary bladder serosa. The diagnosis was made by histology and immunohistochemistry, with cytokeratin, vimentin and calretinin antibodies. Differential diagnosis with chronic peritonitis and spreading of abdominal primary carcinoma is discussed.
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Affiliation(s)
- C Geninet
- UP d'Histologie et d'Anatomie Pathologique, Ecole Nationale Vétérinaire d'Alfort, 7 Avenue du Général de Gaulle, 94704 Maisons-Alfort Cedex, France.
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