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Tanaka T, Wada Y, Noguchi S, Nishida H, Akiyoshi H. Contrast-enhanced CT features of pyloric lesions in 17 dogs: Case series. Vet Radiol Ultrasound 2023; 64:262-270. [PMID: 36571176 DOI: 10.1111/vru.13193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 10/06/2022] [Accepted: 10/15/2022] [Indexed: 12/27/2022] Open
Abstract
Pyloric outflow obstructions can be caused by several types of lesions. When a thickened gastric wall and pyloric mass are detected, malignant neoplasia must be differentiated from chronic hypertrophic pyloric gastropathy. CT can characterize gastric tumors. However, based on the authors' review of the literature, there is limited information about the CT findings of pyloric lesions. The purpose of this retrospective case series study was to assess the CT findings of canine pyloric lesions. The following CT parameters were recorded: anatomical area, involved area, lesion shape, growth patterns of wall thickening lesions, enhancement pattern of the lesion in the early and delayed phases, lymphomegaly, and pulmonary metastasis. Seventeen dogs were included in this study and had the following final diagnoses: hyperplasia (five dogs), adenoma (five dogs), adenocarcinoma (three dogs), gastrointestinal stromal tumor (GIST; two dogs), polyposis (one dog), and pyogenic granuloma (one dog). Hyperplasia, adenoma, and polyposis formed mass lesions that involved the mucosal layer. Lymphomegaly was detected in two Jack Russell terriers with hyperplasia; however, the causes were unknown because we did not perform biopsies. All adenocarcinomas formed wall-thickened lesion that involved the outer layer, with lymphomegaly. All GISTs formed mass lesion that involved the outer layer. The pyogenic granulomas formed symmetric wall-thickened lesion that involved the mucosal and outer layers. CT facilitated the characterization of canine pyloric lesions using contrast enhancement, based on the involved area and lesion shape. However, polyposis may require caution in diagnosis based on CT findings alone.
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Affiliation(s)
- Toshiyuki Tanaka
- Laboratory of Veterinary Surgery, School of veterinary Science, Osaka Metropolitan University, Izumisano-shi, Osaka, Japan.,Kinki Animal Medical Training Institute & Veterinary Clinic, Higashiosaka, Osaka, Japan
| | - Yusuke Wada
- Veterinary Medical Center, School of veterinary Science, Osaka Metropolitan University, Izumisano-shi, Osaka, Japan
| | - Shunsuke Noguchi
- Laboratory of Veterinary Radiology, School of veterinary Science, Osaka Metropolitan University, Izumisano-shi, Osaka, Japan
| | - Hidetaka Nishida
- Laboratory of Veterinary Surgery, School of veterinary Science, Osaka Metropolitan University, Izumisano-shi, Osaka, Japan
| | - Hideo Akiyoshi
- Laboratory of Veterinary Surgery, School of veterinary Science, Osaka Metropolitan University, Izumisano-shi, Osaka, Japan
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Araújo D, Cabral I, Vale N, Amorim I. Canine Gastric Cancer: Current Treatment Approaches. Vet Sci 2022; 9:vetsci9080383. [PMID: 35893776 PMCID: PMC9394467 DOI: 10.3390/vetsci9080383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 07/10/2022] [Accepted: 07/24/2022] [Indexed: 11/29/2022] Open
Abstract
Simple Summary Human gastric cancer is a prevalent cancer worldwide with a high mortality rate. Although sharing many other features, the incidence of gastric cancer is lower in dogs than in humans. Surgery is the first-line treatment; however, it is associated with several complications. Nevertheless, chemotherapy to treat canine gastric cancer has not received much attention, probably due to its late diagnosis, fast progression, low median survival time, and very high mortality rate, along with the lack of publications with concrete scientific results. In this review, we explore the pharmacological approach used in treatment of this often-fatal disease. Abstract Human gastric cancer (GC) ranks as the fifth most prevalent cancer worldwide, and is the third leading cause of cancer-related death. The incidence of GC is lower in dogs than in humans, accounting for less than 1% of all canine malignancies. In recent years, efforts have been made to understand the pathogenesis of GC and in find an appropriate therapy to maximize curative results, such as adjuvant chemotherapy treatments in addition to surgery. Although surgery is the first-line treatment, it is associated with several complications. In terms of chemotherapeutic intervention, canine gastric cancer has not received much attention, probably due to its late diagnosis, fast progression, low median survival time, and very high mortality rate, along with the lack of publications with concrete scientific results. In this review, we explore canine GC and the pharmacological approach used in the treatment of this often-fatal disease.
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Affiliation(s)
- Diana Araújo
- Institute of Biomedical Sciences Abel Salazar (ICBAS), Universidade do Porto (UP), Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal;
| | - Inês Cabral
- Fitzpatrick Referrals Oncology and Soft Tissue, 70 Priestley Rd, Guildford GU2 7AJ, UK;
| | - Nuno Vale
- OncoPharma Research Group, Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal;
- Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine, University of Porto, Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal
- Associate Laboratory RISE—Health Research Network, Faculty of Medicine, University of Porto, Alameda Professor Hernâni Monteiro, 4200-319 Porto, Portugal
| | - Irina Amorim
- Institute of Biomedical Sciences Abel Salazar (ICBAS), Universidade do Porto (UP), Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal;
- Institute for Research and Innovation in Health (i3S), Universidade do Porto (UP), Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- Institute of Molecular Pathology and Immunology (IPATIMUP), University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135 Porto, Portugal
- Correspondence:
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Ohmi A, Ohno K, Chambers JK, Uchida K, Nakagawa T, Tomiyasu H, Tsujimoto H. Clinical and histopathological features and prognosis of gastrointestinal adenocarcinomas in Jack Russell Terriers. J Vet Med Sci 2020; 83:167-173. [PMID: 33328390 PMCID: PMC7972879 DOI: 10.1292/jvms.20-0421] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
There has been an increase in the number of Jack Russell Terriers (JRTs) diagnosed with
adenomas and adenocarcinomas of the gastrointestinal tract in Japan. This study
retrospectively investigated the clinical and histopathological features and prognosis of
adenocarcinomas arising in the gastrointestinal tract in JRT dogs. Seven JRTs and 39 dogs
of other breeds diagnosed with gastrointestinal adenocarcinoma were included in the study.
The most common sites of gastrointestinal adenocarcinoma in JRTs were the pylorus and
rectum. On histopathological examination, these adenocarcinomas showed a papillary or
tubular growth pattern, and the lesions were confined within the mucosal epithelium and
poorly invasive. Among all dogs with gastric adenocarcinoma, the median survival time
(MST) for five of the JRTs could not be determined because more than half of the cases
remained alive, while the MST for nine non-JRT dogs was 34 days. Among all dogs with
adenocarcinoma in the large intestine, the MST for three of the JRTs could not be
determined, while the MST for nine non-JRT dogs was 1,973 days. The difference in MST
between JRT and non-JRT dogs with gastric adenocarcinoma was significant
(P=0.0220). Since gastrointestinal adenocarcinomas in JRTs show
distinct characteristics with respect to their clinical features, treatment course, and
prognosis, a different surgical and medical treatment plan should be considered compared
to the management of gastrointestinal adenocarcinomas in other dog breeds.
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Affiliation(s)
- Aki Ohmi
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Koichi Ohno
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - James K Chambers
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Kazuyuki Uchida
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Taisuke Nakagawa
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Hirotaka Tomiyasu
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Hajime Tsujimoto
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
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Voss SJ, Barceló Oliver F, Rupp A, Raftery AG, Pollock PJ. Partial gastrectomy and total splenectomy for the treatment of a gastric mass in a horse. EQUINE VET EDUC 2020. [DOI: 10.1111/eve.12953] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S. J. Voss
- School of Veterinary Medicine Weipers Centre Equine Hospital University of Glasgow UK
| | - F. Barceló Oliver
- The Royal (Dick) School of Veterinary Studies University of Edinburgh Easter Bush UK
| | - A. Rupp
- Division of Pathology, Public Health and Disease Investigation School of Veterinary Medicine University of Glasgow UK
| | - A. G. Raftery
- School of Veterinary Medicine Weipers Centre Equine Hospital University of Glasgow UK
| | - P. J. Pollock
- The Royal (Dick) School of Veterinary Studies University of Edinburgh Easter Bush UK
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Abrams B, Wavreille VA, Husbands BD, Matz BM, Massari F, Liptak JM, Cray MT, de Mello Souza CH, Wustefeld-Janssens BG, Oblak ML, Su L, Selmic LE. Perioperative complications and outcome after surgery for treatment of gastric carcinoma in dogs: A Veterinary Society of Surgical Oncology retrospective study of 40 cases (2004-2018). Vet Surg 2019; 48:923-932. [PMID: 31140634 DOI: 10.1111/vsu.13239] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 04/11/2019] [Accepted: 05/01/2019] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To describe the clinical characteristics, perioperative complications, and outcomes in dogs surgically treated for gastric carcinoma. STUDY DESIGN Multi-institutional retrospective case series. ANIMALS Forty client-owned dogs with histologically confirmed gastric carcinoma. METHODS Medical records were reviewed for preoperative diagnostics, surgery, histopathology, postoperative complications, adjuvant chemotherapy, disease progression, and survival. Variables were assessed for associations with outcome by using Cox proportional hazards regression analysis. RESULTS Surgical treatment included partial gastrectomy (28 dogs), Billroth I (9 dogs), subtotal gastrectomy (2 dogs), and submucosal resection (1 dog). Major postoperative complications occurred in 8 of 40 dogs, including septic peritonitis secondary to dehiscence in 4 dogs. The median progression free interval was 54 days, and the median survival time (MST) was 178 days (range, 1-1902). According to multivariable analysis results, experiencing an intraoperative complication was associated with an increased risk of death (hazard ratio [HR] 3.5, 95% CI 1.1-9.8, P = .005), and administration of adjuvant chemotherapy correlated with an improved survival (HR 0.4, 95% CI 0.2-0.9, P = .03). CONCLUSION In this population of dogs, MST exceeded historically reported data, major postoperative complication rates were comparable to established literature, and administration of adjuvant chemotherapy was associated with improved survival. CLINICAL SIGNIFICANCE Results from this study may be used to counsel owners more accurately regarding prognosis for dogs undergoing surgical excision for gastric carcinoma.
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Affiliation(s)
- Brittany Abrams
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio
| | - Vincent A Wavreille
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio
| | - Brian D Husbands
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St Paul, Minnesota
| | - Brad M Matz
- Department of Clinical Sciences, College of Veterinary Medicine, Auburn University, Auburn, Alabama
| | - Federico Massari
- Department of Surgery, Clinica Veterinaria Nervianese, Milan, Italy
| | - Julius M Liptak
- Department of Surgery, VCA Canada-Alta Vista Animal Hospital, Ottawa, Ontario, Canada
| | - Megan T Cray
- Department of Surgery, Angell Animal Medical Center, Boston, Massachusetts
| | - Carlos Henrique de Mello Souza
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida
| | - Brandan G Wustefeld-Janssens
- Department of Veterinary Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas
| | - Michelle L Oblak
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Lillian Su
- Sunstone Veterinary Specialists, Portland, Oregon
| | - Laura E Selmic
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio
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Tanaka T, Akiyoshi H, Mie K, Okamoto M, Yoshida Y, Kurokawa S. Contrast-enhanced computed tomography may be helpful for characterizing and staging canine gastric tumors. Vet Radiol Ultrasound 2018; 60:7-18. [PMID: 30123960 DOI: 10.1111/vru.12677] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 06/04/2018] [Accepted: 06/04/2018] [Indexed: 02/06/2023] Open
Abstract
In humans, computed tomography (CT) is a widely performed technique for the diagnosis and staging of gastric tumors. The purpose of this retrospective case series study was to describe CT findings in a group of dogs with confirmed gastric tumors. For each included dog, the following CT parameters were recorded: gastric tumor location, tumor shape, gastric involvement pattern, tumor enhancement pattern in early and late phases, presence and location of lymphadenopathy, gastric tumor attenuation values, attenuation values of enlarged lymph nodes, maximum short-axis diameter (mm) of enlarged lymph node, maximum long-axis diameter (mm) of enlarged lymph node, and short-axis diameter to long-axis diameter ratio (short axis/long axis). A total of 16 dogs met inclusion criteria and had the following final diagnoses: five lymphoma, six adenocarcinoma, three inflammatory polyps, and two leiomyoma. In the early- and delayed-phase postcontrast images, the mean CT attenuation value for lymphoma was lower than that of other gastric tumors. Lymphadenopathy was widespread in lymphomas and regional in adenocarcinomas. Lymphadenopathy was not detected in leiomyomas. Lymph node measurements in lymphoma were larger than lymph node measurements in adenocarcinoma. Although there were overlapping findings for the different types of gastric tumors, contrast-enhanced CT provided helpful information for characterizing gastric tumors based on the following criteria: early and late enhancement patterns, the site of origin of the mass lesion, and extent of local invasion and distant metastases. Lymphoma should be considered for canine gastric tumors with low mean attenuation values during early- and delayed-phase postcontrast images, and widespread, bulky, and rounded lymphadenopathy.
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Affiliation(s)
- Toshiyuki Tanaka
- Laboratory of Veterinary Surgery, Department of Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Izumisano-shi, Osaka, 598-8531, Japan.,Kinki Animal Medical Training Institute & Veterinary Clinic, Higashiosaka, Osaka, 578-0984, Japan
| | - Hideo Akiyoshi
- Laboratory of Veterinary Surgery, Department of Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Izumisano-shi, Osaka, 598-8531, Japan
| | - Keiichiro Mie
- Laboratory of Veterinary Surgery, Department of Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Izumisano-shi, Osaka, 598-8531, Japan
| | - Mari Okamoto
- Laboratory of Veterinary Surgery, Department of Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Izumisano-shi, Osaka, 598-8531, Japan
| | - Yuuki Yoshida
- Laboratory of Veterinary Surgery, Department of Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Izumisano-shi, Osaka, 598-8531, Japan
| | - Shohei Kurokawa
- Laboratory of Veterinary Surgery, Department of Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Izumisano-shi, Osaka, 598-8531, Japan
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7
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Hugen S, Thomas RE, German AJ, Burgener IA, Mandigers PJJ. Gastric carcinoma in canines and humans, a review. Vet Comp Oncol 2016; 15:692-705. [PMID: 27549077 DOI: 10.1111/vco.12249] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 05/06/2016] [Accepted: 05/20/2016] [Indexed: 02/06/2023]
Abstract
Gastric carcinoma (GC) is the most common neoplasm in the stomach of dogs. Although incidence in the general population is reported to be low, breed-specific GC has a high incidence. Median age at presentation ranges from 8 to approximately 10 years. The disease is mostly located in the lesser curvature and antropyloric region of the stomach. Unfortunately, diagnosis is usually made when the disease is at an advanced stage and, therefore, prognosis is poor. Due to similarities in clinical presentation, diagnosis, histology and prognosis, canine GC may serve as a valuable model for human GC. Extensive pedigrees of canine gastric carcinoma cases could reveal insights for human gastric carcinoma. Putative species differences include the role of Helicobacter in pathogenesis, the wide array of genetic data and screening available for humans, and treatment protocols that are available for human GC.
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Affiliation(s)
- S Hugen
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - R E Thomas
- Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - A J German
- School of Veterinary Science, University of Liverpool, Neston, UK
| | - I A Burgener
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - P J J Mandigers
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
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