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Rueda JR, Porto CD, Franco RP, da Costa IB, Bueno LMC, Girio RJS, Manhoso FFR, Bueno PCDS, Repetti CSF. Mammary neoplasms in female dogs: Clinical, diagnostic and therapeutic aspects. VET MED-CZECH 2024; 69:99-114. [PMID: 38751991 PMCID: PMC11093647 DOI: 10.17221/4/2024-vetmed] [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: 01/17/2024] [Accepted: 03/26/2024] [Indexed: 05/18/2024] Open
Abstract
With the increase in the life expectancy of domestic animals and their increasingly affectionate relationship with their owners, it is possible to observe an increase in cases of neoplasms in these animals. Mammary neoplasia mainly affects older females who have not been castrated, due to hormonal dependence for the development of the tumour. The main form of treatment is surgery. This study aims to carry out an updated review on mammary neoplasms in female dogs covering the anatomy, physiology, prevalence, causes, diagnoses, treatments, prevention and prognosis, based on scientific articles by renowned researchers.
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Affiliation(s)
- Janaina Reato Rueda
- Department of Veterinary Science, University of Marilia – UNIMAR, Marilia/SP, Brazil
| | - Camila Dias Porto
- Department of Veterinary Science, University of Marilia – UNIMAR, Marilia/SP, Brazil
| | | | | | | | - Raul Jose Silva Girio
- Department of Veterinary Science, University of Marilia – UNIMAR, Marilia/SP, Brazil
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2
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da Silva EMG, dos Santos TR, Silva MJB. Identifying the Risk Factors for Malignant Mammary Tumors in Dogs: A Retrospective Study. Vet Sci 2023; 10:607. [PMID: 37888559 PMCID: PMC10610602 DOI: 10.3390/vetsci10100607] [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: 06/02/2023] [Revised: 07/18/2023] [Accepted: 07/21/2023] [Indexed: 10/28/2023] Open
Abstract
Mammary cancer is one of the main causes of death in female dogs worldwide, considering that many risk factors are involved in its development. This study aimed to elucidate the relationship between epidemiological and clinical risk factors with the histopathological diagnosis of malignant mammary tumors in dogs treated at the Veterinary Hospital of the Federal University of Uberlândia, which has one of the first veterinary oncology services in Brazil. A retrospective matched case-control study was conducted to identify risk factors for the development of malignant mammary tumors in dogs. The variables analyzed were size dog, breed, housing, type of diet, and body score. Potential risk factors were selected by univariate analysis (p < 0.25) before multivariate forward binary logistic regression. The most frequent benign tumor was the benign mixed tumor (35.2%), and the most frequent malignant tumor was the mixed carcinoma (27.4%). Size dog, breed, housing, and overweight are predictors of malignant mammary tumors in dogs. The highest risk of developing malignant mammary tumors is associated with large female dogs, Yorkshire or Poodle breeds, living outside the home, or being overweight.
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Affiliation(s)
- Elis Maressa Gonçalves da Silva
- Laboratory of Tumor Biomarkers and Osteoimmunology, Institute of Biomedical Sciences, Federal University of Uberlândia, Avenida Pará, 1720, Campus Umuarama, Uberlândia 38400-000, MG, Brazil
| | - Thaisa Reis dos Santos
- Instituto de Ciências Clínicas Veterinárias, Universidad Austral del Chile, Valdivia 5090000, Chile
| | - Marcelo José Barbosa Silva
- Laboratory of Tumor Biomarkers and Osteoimmunology, Institute of Biomedical Sciences, Federal University of Uberlândia, Avenida Pará, 1720, Campus Umuarama, Uberlândia 38400-000, MG, Brazil
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3
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Feliciano MAR, de Miranda BDSP, Aires LPN, Lima BB, de Oliveira APL, Feliciano GSM, Uscategui RAR. The Importance of Ultrasonography in the Evaluation of Mammary Tumors in Bitches. Animals (Basel) 2023; 13:1742. [PMID: 37889644 PMCID: PMC10252055 DOI: 10.3390/ani13111742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 04/11/2023] [Accepted: 04/14/2023] [Indexed: 10/29/2023] Open
Abstract
The high incidence of mammary tumors in small animals is concerning. Patient history, clinical examination, physical evaluation, and imaging studies are important for clinical staging. Ultrasonography is commonly applied to investigate the presence of abdominal metastasis. However, it has been shown to provide important information regarding mammary tumors' architecture and advanced sonographic techniques can provide information regarding neovascularization, stiffness, and perfusion. Different techniques have been investigated to determine accuracy to predict the lesions' histological classification. This paper reviews the information regarding each sonographic technique in the evaluation of mammary tumors, describing the most common findings and their potential to accurately assess and predict malignancy. Even though the gold standard for the diagnosis of mammary lesions is the histopathological examination, some ultrasonographic features described can predict the potential of a lesion being malignant. Among the different sonographic techniques, elastography can be considered the most reliable modality to accurately differentiate benign from malignant tumors when malignant lesions present increased stiffness. However, the combination of all sonographic techniques can provide important information that can lead to a better therapeutic approach and clinical staging. Furthermore, the potential of the sonographic study, especially CEUS to monitor therapeutic progression, demonstrate the need of further studies.
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Affiliation(s)
- Marcus Antônio Rossi Feliciano
- Laboratory of Veterinary Imaginology, Faculty of Animal Science and Food Engineering (FZEA), Sao Paulo University (USP), Pirassununga 13635-900, Sao Paulo, Brazil
| | - Brenda dos Santos Pompeu de Miranda
- Department of Veterinary Clinic and Surgery, School of Agricultural and Veterinarian Sciences, Sao Paulo State University “Júlio de Mesquita Filho” (FCAV/UNESP), Jaboticabal 14884-900, Sao Paulo, Brazil
| | - Luiz Paulo Nogueira Aires
- Department of Veterinary Clinic and Surgery, School of Agricultural and Veterinarian Sciences, Sao Paulo State University “Júlio de Mesquita Filho” (FCAV/UNESP), Jaboticabal 14884-900, Sao Paulo, Brazil
| | - Bruna Bressianini Lima
- Department of Veterinary Clinic and Surgery, School of Agricultural and Veterinarian Sciences, Sao Paulo State University “Júlio de Mesquita Filho” (FCAV/UNESP), Jaboticabal 14884-900, Sao Paulo, Brazil
| | - Ana Paula Luiz de Oliveira
- Department of Veterinary Clinic and Surgery, School of Agricultural and Veterinarian Sciences, Sao Paulo State University “Júlio de Mesquita Filho” (FCAV/UNESP), Jaboticabal 14884-900, Sao Paulo, Brazil
| | - Giovanna Serpa Maciel Feliciano
- Laboratory of Veterinary Imaginology, Faculty of Animal Science and Food Engineering (FZEA), Sao Paulo University (USP), Pirassununga 13635-900, Sao Paulo, Brazil
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4
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Emanuelli MP, Kommers GD, Antoniazzi AQ, Bernardes FCS, Lopes STA, Fighera RA. Myoepithelial cells and extracellular matrix in the cytologic differentiation of canine mammary tumors. Vet Clin Pathol 2020; 49:451-458. [PMID: 32966632 DOI: 10.1111/vcp.12894] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 01/27/2020] [Accepted: 02/03/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND Mammary neoplasms are common tumors in intact female dogs. Fine-needle aspiration cytology (FNAC) is a valuable diagnostic tool and has gained some credibility in the diagnosis of mammary tumors in dogs. Prompt classification of canine mammary tumors using cytology would enhance feasibility as a prognostic tool and guide clinical and surgical management. OBJECTIVES We aimed to examine background elements to differentiate mammary tumors using FNAC. We proposed to distinguish simple from complex and mixed tumors by identifying myoepithelial (ME) cells and different types of extracellular matrix. Additionally, we determined the accuracy of FNAC to differentiate benign from malignant tumors. METHODS One hundred and one mammary tumors from female dogs were included in this study. We compared FNAC using histopathology as the gold standard. Cellular and background components were evaluated and identified. The cytologic accuracy, sensitivity (Se), specificity (Sp), positive predictive value (PPV), and negative predictive value (NPV) for diagnosing malignancy were determined, excluding inadequate samples. RESULTS The cytologic-histologic agreement was 92.5% for simple carcinomas, 57.9% for complex-type carcinomas, 57.1% for mixed-type carcinomas, 27.3% for carcinosarcomas, and 100% for osteosarcomas. Myoepithelial cells were successfully identified using FNAC. Myxoid and chondroid/osteoid matrix were satisfactorily recognized. Cytologic accuracy, Se, Sp, PPV, and NPV for diagnosing malignancy were 99%, 100%, 83%, 99%, and 100%, respectively. CONCLUSIONS Chondroid/osteoid matrix was noted in mixed tumors but not in complex tumors. Myxoid matrix, often associated with ME cells, was noted in complex and mixed tumors. Mesenchymal cells were differentiated from ME cells, allowing the distinction of simple carcinomas with scirrhous reaction from complex and mixed tumors.
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Affiliation(s)
- Mauren P Emanuelli
- Department of Small Animal Clinical Science, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Glaucia D Kommers
- Department of Pathology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Alfredo Q Antoniazzi
- Department of Large Animal Clinical Science, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | | | - Sonia T A Lopes
- Department of Small Animal Clinical Science, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Rafael A Fighera
- Department of Pathology, Federal University of Santa Maria, Santa Maria, RS, Brazil
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5
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Araújo P, Campinho D, Mendonça F, Evêncio Neto J. Dosagem sérica do marcador tumoral CA 15.3 em cadelas portadoras de neoplasias mamárias pelo método de eletroquimioluminescência. ARQ BRAS MED VET ZOO 2020. [DOI: 10.1590/1678-4162-10828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- P.B. Araújo
- Universidade Federal Rural de Pernambuco, Brazil
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Varallo GR, Gelaleti GB, Maschio-Signorini LB, Moschetta MG, Lopes JR, De Nardi AB, Tinucci-Costa M, Rocha RM, De Campos Zuccari DAP. Prognostic phenotypic classification for canine mammary tumors. Oncol Lett 2019; 18:6545-6553. [PMID: 31807173 PMCID: PMC6876320 DOI: 10.3892/ol.2019.11052] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 07/09/2019] [Indexed: 12/23/2022] Open
Abstract
Mammary neoplasms are a heterogeneous form of disease, and in order to determine its course and biological features with more accuracy, investigations based on tumor phenotypes are required. The aim of the present study was to propose and validate a phenotypic classification for canine mammary tumors and to assess any association between clinicopathological characteristics, survival and prognosis. For the immunohistochemistry analysis, the primary antibodies against estrogen receptor-α, progesterone receptor, human epidermal growth factor receptor 2 (HER-2)/neu and E-cadherin were used. A total of 110 canine mammary tumors were investigated; 42 tumors were classified as luminal A, 41 as luminal B, 17 as triple-negative and 10 as HER-2-positive. The luminal A and B phenotypes were associated with improved prognosis, whereas HER-2positive and triple-negative tumors were more aggressive, and exhibited a significant association with the occurrence of metastasis, a worse Tumor-Node-Metastasis classification and shorter survival time (P<0.05). In addition, there were different levels of E-cadherin expression intensity observed among the four tumor profiles investigated. Luminal A and B phenotypes presented an upregulation of E-cadherin compared with the HER-2 positive and triple-negative phenotypes (P<0.05). From the results of the present study, the proposed immunohistochemical panel and phenotypic classification techniques could be useful diagnostic tools with a good technical applicability in veterinary oncology. The analysis of E-cadherin expression in the panel of tumor markers allowed a more accurate classification for determining the biological features of the mammary tumor.
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Affiliation(s)
- Giovanna Rossi Varallo
- Faculty of Agricultural and Veterinary Sciences, Universidade Estadual Paulista, Jaboticabal, São Paulo 14884-900, Brazil
| | - Gabriela Bottaro Gelaleti
- Institute of Biosciences, Letters and Exact Sciences, Universidade Estadual Paulista, São José do Rio Preto, São Paulo 15054-000, Brazil
| | - Larissa Bazela Maschio-Signorini
- Institute of Biosciences, Letters and Exact Sciences, Universidade Estadual Paulista, São José do Rio Preto, São Paulo 15054-000, Brazil
| | - Marina Gobbe Moschetta
- Laboratory of Molecular Investigation of Cancer, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto, São José do Rio Preto, São Paulo 15090-000, Brazil
| | - Juliana Ramos Lopes
- Institute of Biosciences, Letters and Exact Sciences, Universidade Estadual Paulista, São José do Rio Preto, São Paulo 15054-000, Brazil
| | - Andrigo Barboza De Nardi
- Faculty of Agricultural and Veterinary Sciences, Universidade Estadual Paulista, Jaboticabal, São Paulo 14884-900, Brazil
| | - Mirela Tinucci-Costa
- Faculty of Agricultural and Veterinary Sciences, Universidade Estadual Paulista, Jaboticabal, São Paulo 14884-900, Brazil
| | - Rafael Malagoli Rocha
- International Research Center-A.C. Camargo Cancer Center, São Paulo, São Paulo 01508-010, Brazil
| | - Debora Aparecida Pires De Campos Zuccari
- Laboratory of Molecular Investigation of Cancer, Department of Molecular Biology, Faculty of Medicine of São José do Rio Preto, São José do Rio Preto, São Paulo 15090-000, Brazil
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7
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Varallo GR, Jardim-Perassi BV, Alexandre PA, Fukumasu H, Zuccari DAPC. Global gene expression profile in canine mammary carcinomas. Vet J 2019; 254:105393. [PMID: 31836163 DOI: 10.1016/j.tvjl.2019.105393] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/30/2019] [Accepted: 10/01/2019] [Indexed: 11/26/2022]
Abstract
Mammary gland tumors are a heterogeneous group of neoplastic diseases. Genetic studies make it possible to determine genetic profiles and identify new molecular markers. The aim of the study was to evaluate the gene expression profile of canine mammary carcinomas and identify potential prognostic markers. Twelve mammary cancer samples from bitches were collected for the evaluation of global gene expression. Microarray assays were performed using commercial kits. Statistical analysis of the microarray was done using moderate t-statistic and adjusted using the Benjamini and Hochberg procedure. Differential connectivity analysis was also performed. Enrichment analyses were conducted using WebGestalt. P-values were calculated using hypergeometric statistics and adjusted using the Benjamini and Hochberg procedure. The HYAL-1 gene was validated using quantitative PCR (qPCR). There were 878 upregulated genes and 821 downregulated genes in the neoplasms studied. Enrichment analysis (individual analysis) identified the HYAL-1 gene as a potential marker of tumorigenesis and tumor recurrence. Differential connectivity analysis demonstrated 262 differentially connected genes.
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Affiliation(s)
- G R Varallo
- Postgraduate Program in Veterinary Surgery, UNESP-FCAV, Jaboticabal 14884-900, Brazil
| | - B V Jardim-Perassi
- Department of Molecular Biology, FAMERP, São José do Rio Preto 15090000, Brazil
| | - P A Alexandre
- Department of Veterinary Medicine, FZEA-USP, Pirassununga 13635900, Brazil
| | - H Fukumasu
- Department of Veterinary Medicine, FZEA-USP, Pirassununga 13635900, Brazil
| | - D A P C Zuccari
- Department of Molecular Biology, FAMERP, São José do Rio Preto 15090000, Brazil.
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8
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Maués T, El-Jaick KB, Costa FB, Freitas PVS, Moreira AS, Castro L, Ferreira MLG, Ferreira AMR. Could polymorphisms in ABCB1 gene represent a genetic risk factor for the development of mammary tumors in dogs? Vet J 2019; 248:58-63. [PMID: 31113564 DOI: 10.1016/j.tvjl.2019.04.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 04/18/2019] [Accepted: 04/18/2019] [Indexed: 01/09/2023]
Abstract
The ABCB1 gene encodes the P-glycoprotein (P-gp) which regulates distribution and bioavailability of many endogenous and exogenous substrates, acting as a cellular mechanism of protection against these substances. Some studies have shown evidence that P-gp is related to carcinogenesis. In this study, we performed PCR and direct sequencing of ABCB1 exons 9 and 26 in 47 tissue DNA samples from canine mammary tumors. A statistically significant correlation between distinct canine breeds and the frequency of ABCB1 polymorphisms (c.985T > A and c.3442A > G SNP in ABCB1exons 9 and 26, respectively) was observed (P = 0.0015). In contrast, the TNM clinical staging, age, histological type and grade, as well as other histopathological characteristics, did not present statistically significant difference in relation to one or both SNP found in exons 9 and 26. These findings raise questions about the role of the canine ABCB1 polymorphisms in the development of mammary tumors, since the Poodle breed, which is the most common dog breed affected by mammary tumors in Brazil, presented the highest frequency of these variants. Notwithstanding, additional studies comprising a number of samples expressing the ABCB1 gene from healthy dogs, with advanced age and from different breeds, will be necessary to confirm the association of ABCB1polymorphisms and the development of mammary tumors.
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Affiliation(s)
- T Maués
- Department of Pathology and Veterinary Clinic, Faculty of Veterinary, UFF, Av. Alm. Ary Parreiras, 507, Icaraí, 24220-000, Niterói, RJ, Brazil.
| | - K B El-Jaick
- Department of Genetics and Molecular Biology, UNIRIO, R. Frei Caneca, 94, Centro, 20211-010, Rio de Janeiro, RJ, Brazil
| | - F B Costa
- Department of Animal Pathology, Veterinary School, UFMG, Av. Antônio Carlos, 6627, Sala 312, Pampulha, 31270-901, Belo Horizonte, MG, Brazil
| | - P V S Freitas
- Department of Genetics and Molecular Biology, UNIRIO, R. Frei Caneca, 94, Centro, 20211-010, Rio de Janeiro, RJ, Brazil
| | - A S Moreira
- Laboratory of Functional Genomics and Bioinformatics, RPT01A DNA Sequencing Platforms, Fiocruz, Av. Brasil, 4365, Manguinhos, 21040-360, Rio de Janeiro, RJ, Brazil
| | - L Castro
- National Institute of Infectology, Pharmacogenetics Research Laboratory, Fiocruz, Av. Brasil, 4365, Manguinhos, 21040-360, Rio de Janeiro, RJ, Brazil
| | - M L G Ferreira
- Department of Pathology and Veterinary Clinic, Faculty of Veterinary, UFF, Av. Alm. Ary Parreiras, 507, Icaraí, 24220-000, Niterói, RJ, Brazil
| | - A M R Ferreira
- Department of Pathology and Veterinary Clinic, Faculty of Veterinary, UFF, Av. Alm. Ary Parreiras, 507, Icaraí, 24220-000, Niterói, RJ, Brazil
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Silva P, Uscategui RAR, Maronezi MC, Gasser B, Pavan L, Gatto IRH, de Almeida VT, Vicente WRR, Feliciano MAR. Ultrasonography for lymph nodes metastasis identification in bitches with mammary neoplasms. Sci Rep 2018; 8:17708. [PMID: 30532025 PMCID: PMC6286329 DOI: 10.1038/s41598-018-34806-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 10/06/2018] [Indexed: 11/12/2022] Open
Abstract
The aim of this study was to evaluate and compare the diagnostic accuracy of B-mode, Doppler ultrasonography and Acoustic Radiation Force Impulse (ARFI) elastography in the identification of axillary and inguinal lymph nodes metastasis in bitches with mammary neoplasms. The axillary (n = 96) and inguinal (n = 100) lymph nodes of 100 bitches were evaluated using B-Mode, Colour Doppler and ARFI-elastography. After this evaluation, mastectomy and lymph nodes excision were performed and these structures were histologically classified as free, reactive or metastatic. Ultrasonographic parameters were compared by Chi-Square or ANOVA tests and if they are significant, discriminative power analysis according to histopathological classification was performed (ROC analysis). The ARFI-elastography shear wave velocity (SWV) enabled metastasis identification in inguinal (sensitivity 95% specificity 87%) and axillary lymph nodes (sensitivity 100% specificity 94%). While B-Mode ultrasound Short/Long axis ratio evaluation of inguinal and axillary lymph nodes only resulted in a sensitivity around of 71% and specificity of 55%. In conclusion, B-Mode ultrasonography may contribute to diagnosis of metastasis in axillary and inguinal lymph nodes of bitches affected by mammary neoplasm with limited accuracy, while SWV evaluation proved to be an excellent diagnosis tool, which allows differentiation between free, reactive and tumour metastatic lymph nodes.
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Affiliation(s)
- Priscila Silva
- Department of Clinic and Veterinary Surgery, São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Jaboticabal, Jaboticabal, Sao Paulo, Brazil
| | - Ricardo Andres Ramirez Uscategui
- Department of Clinic and Veterinary Surgery, São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Jaboticabal, Jaboticabal, Sao Paulo, Brazil. .,Institute of Agrarian Sciences, Federal University of the Jequitinhonha and Mucuri Valleys (UFVJM), Unaí, Minas Gerais, Brazil.
| | - Marjury Cristina Maronezi
- Department of Clinic and Veterinary Surgery, São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Jaboticabal, Jaboticabal, Sao Paulo, Brazil
| | - Beatriz Gasser
- Department of Preventive Veterinary Medicine and Animal Reproduction, São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Jaboticabal, Jaboticabal, Sao Paulo, Brazil
| | - Letícia Pavan
- Department of Preventive Veterinary Medicine and Animal Reproduction, São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Jaboticabal, Jaboticabal, Sao Paulo, Brazil
| | - Igor Renan Honorato Gatto
- Department of Preventive Veterinary Medicine and Animal Reproduction, São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Jaboticabal, Jaboticabal, Sao Paulo, Brazil
| | - Vivian Tavares de Almeida
- Department of Clinic and Veterinary Surgery, São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Jaboticabal, Jaboticabal, Sao Paulo, Brazil
| | - Wilter Ricardo Russiano Vicente
- Department of Preventive Veterinary Medicine and Animal Reproduction, São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Jaboticabal, Jaboticabal, Sao Paulo, Brazil
| | - Marcus Antônio Rossi Feliciano
- Department of Clinic and Veterinary Surgery, São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Jaboticabal, Jaboticabal, Sao Paulo, Brazil.,Department of Veterinary Radiology, Federal University of Recôncavo da Bahia (UFRB), Cruz das Almas, Bahia, Brazil
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10
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Nunes F, Campos C, Teixeira S, Bertagnolli A, Lavalle G, Cassali G. Epidemiological, clinical and pathological evaluation of overall survival in canines with mammary neoplasms. ARQ BRAS MED VET ZOO 2018. [DOI: 10.1590/1678-4162-10217] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
ABSTRACT Canine mammary neoplasms (CMNs) are the most frequent lesions and in female dogs. However, studies correlating pathological criteria with clinical evolution in female dogs with mammary neoplasms are scarce. The present study aims to present epidemiological, clinical-pathological and overall survival data to help establish the prognosis and understand the biological behavior of CMNs. A total of 1539 cases were included (85% malignant and 13% benign). Tumor size was an important prognostic factor and was associated with overall patient survival (P< 0.0001). Most dogs diagnosed with malignant neoplasms (83%) had initial clinical staging, although 17% had regional or distant metastases at the time of diagnosis and lower overall survival (P< 0.0001). Carcinoma in mixed tumor was the most frequent histological type and had a better prognosis. Solid carcinomas, micropapillary carcinomas and carcinosarcomas were considered histological types with aggressive biological behavior and were associated with a worse prognosis and lower overall survival (P< 0.0001).
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Affiliation(s)
- F.C. Nunes
- Universidade Federal de Minas Gerais, Brazil
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11
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Heck LC, Cony FG, Bianchi MV, Driemeier D, Sonne L, Pavarini SP. Pathological features of 78 metastatic or multicentric neoplasms involving the central nervous system in dogs. PESQUISA VETERINARIA BRASILEIRA 2018. [DOI: 10.1590/1678-5150-pvb-5925] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
ABSTRACT: Secondary neoplasms affecting the central nervous system (CNS) may occur through blood flow or direct extension. This condition occurrence has increased both due to a longer life expectancy of dogs, as well as with the employment of chemotherapeutics, which may increase the survival period and, thus, the odds of the occurrence of metastasis. The aim of this study was to analyze the epidemiological features, such as the age, breed and sex of the animals affected, as well as the gross and microscopic findings of the metastasis from neoplasms involving the CNS of 78 dogs, and, based on the data, estimate the occurrence and frequency of the metastatic or multicentric neoplasms. Females (71.79%) were most affected than males, with an average age of 9.5-years-old and a median of 10-years-old. Most of the cases had a multifocal distribution (73.07%), and epithelial neoplasms (50%) were the most common. Telencephalon was the most affected neuroanatomical region (61.1%). Mammary neoplasms were the most frequent (47.44%), followed by hemangiosarcoma (19.23%), lymphoma (10.26%) and melanoma (6.41%). Less common neoplasms included osteosarcoma, histiocytic sarcoma and lung carcinoma (2.56%). Mammary neoplasms were mainly composed of anaplastic and micropapillary carcinomas, of which only multifocal microscopic lesions were observed.
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12
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Maués T, El-Jaick KB, Costa FB, Araujo GEF, Soares MVG, Moreira AS, Ferreira MLG, Ferreira AMR. Common germline haplotypes and genotypes identified in BRCA2
exon 11 of dogs with mammary tumours and histopathological analyses. Vet Comp Oncol 2018; 16:379-384. [DOI: 10.1111/vco.12389] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 12/30/2017] [Accepted: 01/04/2018] [Indexed: 12/22/2022]
Affiliation(s)
- T. Maués
- Department of Pathology and Veterinary Clinic, Faculty of Veterinary; Universidade Federal Fluminense; Niterói Brazil
| | - K. B. El-Jaick
- Department of Genetics and Molecular Biology; Universidade Federal do Estado do Rio de Janeiro; Rio de Janeiro Brazil
| | - F. B. Costa
- Department of Animal Pathology, Veterinary School; Universidade Federal de Minas Gerais; Belo Horizonte Brazil
| | - G. E. F. Araujo
- Department of Genetics and Molecular Biology; Universidade Federal do Estado do Rio de Janeiro; Rio de Janeiro Brazil
| | - M. V. G. Soares
- Department of Genetics and Molecular Biology; Universidade Federal do Estado do Rio de Janeiro; Rio de Janeiro Brazil
| | - A. S. Moreira
- Fundação Oswaldo Cruz, Laboratory of Functional Genomics and Bioinformatics; RPT01A DNA Sequencing Platforms; Rio de Janeiro Brazil
| | - M. L. G. Ferreira
- Department of Pathology and Veterinary Clinic, Faculty of Veterinary; Universidade Federal Fluminense; Niterói Brazil
| | - A. M. R. Ferreira
- Department of Pathology and Veterinary Clinic, Faculty of Veterinary; Universidade Federal Fluminense; Niterói Brazil
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13
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Coleto AF, Wilson TM, Soares NP, Gundim LF, Castro IP, Guimarães EC, Bandarra MB, Medeiros-Ronchi AA. Prognostic Value of Occult Isolated Tumour Cells within Regional Lymph Nodes of Dogs with Malignant Mammary Tumours. J Comp Pathol 2017; 158:32-38. [PMID: 29422313 DOI: 10.1016/j.jcpa.2017.11.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Revised: 10/23/2017] [Accepted: 11/05/2017] [Indexed: 12/20/2022]
Abstract
Canine mammary tumours (CMTs) are the most common type of neoplasm in bitches. As in women, the presence of metastasis in regional lymph nodes is an important prognostic factor in bitches with mammary carcinomas, but the clinical significance of occult isolated tumour cells (ITCs) within lymph nodes is still undefined in this species. The effectiveness of immunohistochemistry (IHC) in identifying occult ITCs and micrometastasis (MIC) was compared with that of the conventional haematoxylin and eosin staining technique. The relationship between tumour size, histological type, histological grade and the presence of metastasis was evaluated. The overall survival (OS) of female dogs with occult mammary carcinomas and ITCs within lymph nodes was analysed. Fragments of mammary carcinoma and regional lymph nodes of 59 female dogs were also evaluated. Histological sections of mammary carcinoma and lymph node samples were studied for tumour diagnosis and lymph node samples were tested by IHC using a pan-cytokeratin antibody. It was found that 35.2% of occult ITCs and 2.8% of hidden MIC were detected when IHC was used. There was a good correlation between the size of the tumour and metastasis to the lymph nodes (P = 0.77). ITCs were observed more frequently in the medullary region (60.7%) and metastases in the cortical region (44.4%). There was no significant difference in the OS between female dogs with occult ITCs and lymph nodes without ITCs. IHC can detect occult tumour cells in lymph nodes that are negative by histopathological examination. Female dogs with nodal ITCs do not have lower survival.
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Affiliation(s)
- A F Coleto
- Laboratory of Veterinary Pathology, Faculty of Veterinary Medicine, Federal University of Uberlandia, Minas Gerais, Brazil.
| | - T M Wilson
- Laboratory of Veterinary Pathology, Faculty of Veterinary Medicine, Federal University of Uberlandia, Minas Gerais, Brazil
| | - N P Soares
- Laboratory of Veterinary Pathology, Faculty of Veterinary Medicine, Federal University of Uberlandia, Minas Gerais, Brazil
| | - L F Gundim
- Laboratory of Veterinary Pathology, Faculty of Veterinary Medicine, Federal University of Uberlandia, Minas Gerais, Brazil
| | - I P Castro
- Laboratory of Veterinary Pathology, Faculty of Veterinary Medicine, Federal University of Uberlandia, Minas Gerais, Brazil
| | - E C Guimarães
- Faculty of Mathematics, Federal University of Uberlandia, Minas Gerais, Brazil
| | - M B Bandarra
- Laboratory of Veterinary Pathology, Faculty of Veterinary Medicine, Federal University of Uberlandia, Minas Gerais, Brazil
| | - A A Medeiros-Ronchi
- Laboratory of Veterinary Pathology, Faculty of Veterinary Medicine, Federal University of Uberlandia, Minas Gerais, Brazil
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Raposo-Ferreira TM, Salvador RC, Terra EM, Ferreira JH, Vechetti-Junior IJ, Tinucci-Costa M, Rogatto SR, Laufer-Amorim R. Evaluation of vascular endothelial growth factor gene and protein expression in canine metastatic mammary carcinomas. Microsc Res Tech 2016; 79:1097-1104. [DOI: 10.1002/jemt.22763] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 07/14/2016] [Accepted: 08/05/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Talita M.M. Raposo-Ferreira
- Department of Veterinary Clinic and Surgery; School of Agricultural and Veterinary Sciences, Univ. Estadual Paulista; Jaboticabal Sao Paulo Brazil
| | - Rosana C.L. Salvador
- Department of Veterinary Clinic and Surgery; School of Agricultural and Veterinary Sciences, Univ. Estadual Paulista; Jaboticabal Sao Paulo Brazil
| | - Erika M. Terra
- Department of Veterinary Clinic and Surgery; School of Agricultural and Veterinary Sciences, Univ. Estadual Paulista; Jaboticabal Sao Paulo Brazil
| | - Juarez H. Ferreira
- Department of Morphology; Botucatu Bioscience Institute, Univ. Estadual Paulista Botucatu; Sao Paulo Brazil
| | - Ivan José Vechetti-Junior
- Department of Morphology; Botucatu Bioscience Institute, Univ. Estadual Paulista Botucatu; Sao Paulo Brazil
| | - Mirela Tinucci-Costa
- Department of Veterinary Clinic and Surgery; School of Agricultural and Veterinary Sciences, Univ. Estadual Paulista; Jaboticabal Sao Paulo Brazil
| | - Silvia R. Rogatto
- Department of Urology; Botucatu Medical School, Univ. Estadual Paulista Botucatu, Sao Paulo, Brazil and International Center for Research (CIPE), AC Camargo Hospital, Liberdade; Sao Paulo Brazil
| | - Renée Laufer-Amorim
- Department of Veterinary Clinic; School of Veterinary Medicine and Animal Science, Univ. Estadual Paulista Botucatu; Sao Paulo Brazil
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15
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Raposo-Ferreira TMM, Bueno RC, Terra EM, Avante ML, Tinucci-Costa M, Carvalho M, Cassali GD, Linde SD, Rogatto SR, Laufer-Amorim R. Downregulation of ATM Gene and Protein Expression in Canine Mammary Tumors. Vet Pathol 2016; 53:1154-1159. [DOI: 10.1177/0300985816643367] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The ataxia telangiectasia mutated ( ATM) gene encodes a protein associated with DNA damage repair and maintenance of genomic integrity. In women, ATM transcript and protein downregulation have been reported in sporadic breast carcinomas, and the absence of ATM protein expression has been associated with poor prognosis. The aim of this study was to evaluate ATM gene and protein expression in canine mammary tumors and their association with clinical outcome. ATM gene and protein expression was evaluated by reverse transcription-quantitative polymerase chain reaction and immunohistochemistry, respectively, in normal mammary gland samples (n = 10), benign mammary tumors (n = 11), nonmetastatic mammary carcinomas (n = 19), and metastatic mammary carcinomas (n = 11). Lower ATM transcript levels were detected in benign mammary tumors and carcinomas compared with normal mammary glands ( P = .011). Similarly, lower ATM protein expression was observed in benign tumors ( P = .0003), nonmetastatic mammary carcinomas ( P < .0001), and the primary sites of metastatic carcinomas ( P < .0001) compared with normal mammary glands. No significant differences in ATM gene or protein levels were detected among benign tumors and nonmetastatic and metastatic mammary carcinomas ( P > .05). The levels of ATM gene or protein expression were not significantly associated with clinical and pathological features or with survival. Similar to human breast cancer, the data in this study suggest that ATM gene and protein downregulation is involved in canine mammary gland tumorigenesis.
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Affiliation(s)
| | - R. C. Bueno
- Department of Urology, Faculty of Medicine, UNESP, Botucatu, São Paulo, Brazil
| | - E. M. Terra
- Department of Veterinary Clinic and Surgery, UNESP, Jaboticabal, São Paulo, Brazil
| | - M. L. Avante
- Department of Veterinary Clinic and Surgery, UNESP, Jaboticabal, São Paulo, Brazil
| | - M. Tinucci-Costa
- Department of Veterinary Clinic and Surgery, UNESP, Jaboticabal, São Paulo, Brazil
| | - M. Carvalho
- Department of Veterinary Clinic, UNESP, Botucatu, São Paulo, Brazil
| | - G. D. Cassali
- Department of General Pathology, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - S. D. Linde
- Department of Urology, Faculty of Medicine, UNESP, Botucatu, São Paulo, Brazil
| | - S. R. Rogatto
- Department of Urology, Faculty of Medicine, UNESP, Botucatu, São Paulo, Brazil
- Neogene Laboratory, CIPE, A.C. Camargo Cancer Center, São Paulo, Brazil
| | - R. Laufer-Amorim
- Department of Veterinary Clinic, UNESP, Botucatu, São Paulo, Brazil
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16
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Aflatoxins ingestion and canine mammary tumors: There is an association? Food Chem Toxicol 2015; 84:74-8. [DOI: 10.1016/j.fct.2015.08.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Revised: 07/30/2015] [Accepted: 08/03/2015] [Indexed: 01/29/2023]
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Pavelski M, Silva DM, Leite NC, Junior DA, de Sousa RS, Guérios SD, Dornbusch PT. Infrared Thermography in Dogs with Mammary Tumors and Healthy Dogs. J Vet Intern Med 2015; 29:1578-83. [PMID: 26289007 PMCID: PMC4895668 DOI: 10.1111/jvim.13597] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 05/27/2015] [Accepted: 07/21/2015] [Indexed: 12/21/2022] Open
Abstract
Background Infrared thermography is a painless, noninvasive, nonionizing diagnostic imaging exam used in human medicine as an auxiliary tool for breast cancer diagnosis in women. Hypothesis/Objectives Define thermographic mean temperatures of healthy mammary glands and compare these temperatures with those of mammary glands with tumors in dogs. Animals Fifty client‐owned female dogs were evaluated, including 20 with histopathologically confirmed mammary tumor and 30 clinically healthy (control). Methods A randomized study using infrared thermography analyzed each mammary gland of the animals from the control group and mammary glands with tumors from the tumor group, then the thermographic temperatures obtained were compared. Thermographic exam was performed in a temperature‐controlled room with a cooled thermographic camera—Flir E‐40 (Flir Systems®) Results There was significantly a higher temperature in the caudal abdominal and inguinal mammary glands than the other glands in the healthy group (P < .05). Dogs with mammary tumors had significantly higher thermographic temperature compared with unaffected glands regardless of the tumor size and the location (P < .05). Conclusions and clinical importance The technique seems to be able to assess for the presence of neoplasia within the mammary tissue in bitches. Further investigation is necessary to determine the impact of this technique when adopted clinically.
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Affiliation(s)
- M Pavelski
- Department of Veterinary Medicine, Federal University of Paraná, Curitiba, Brazil
| | - D M Silva
- Department of Veterinary Medicine, Federal University of Paraná, Curitiba, Brazil
| | - N C Leite
- Department of Veterinary Medicine, Federal University of Paraná, Curitiba, Brazil
| | - D A Junior
- Department of Veterinary Medicine, Federal University of Paraná, Curitiba, Brazil
| | - R S de Sousa
- Department of Veterinary Medicine, Federal University of Paraná, Curitiba, Brazil
| | - S D Guérios
- Department of Veterinary Medicine, Federal University of Paraná, Curitiba, Brazil
| | - P T Dornbusch
- Department of Veterinary Medicine, Federal University of Paraná, Curitiba, Brazil
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Flores MM, Bianchi RM, Kommers GD, Irigoyen LF, Barros CS, Fighera RA. Prevalência e achados epidemiológicos, anatomopatológicos e imuno-histoquímicos dos tumores hepáticos malignos primários de cães da Região Central do Rio Grande do Sul (1965-2012). PESQUISA VETERINARIA BRASILEIRA 2013. [DOI: 10.1590/s0100-736x2013000400014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A prevalência e os aspectos epidemiológicos, anatomopatológicos e imuno-histoquímicos dos tumores hepáticos malignos primários (THMP) em cães foram estudados. De 7.373 cães necropsiados em 48 anos (1965-2012), 64 morreram de THMP, o que corresponde a 0,9% do total de cães que morreram por qualquer causa, 7,8% do total de cães que morreram por tumores em geral e 33,5% do total de cães que morreram por tumores hepáticos. Desses 64 casos de THMP, 51 foram revistos histologicamente, avaliados imuno-histoquimicamente e reclassificados como carcinomas (colangiocarcinomas [n=36], carcinomas hepatocelulares [n=9] e hepatocolangiocarcinoma [n=1]) e sarcomas (hemangiossarcomas [n=5]). Dos cães com colangiocarcinomas e carcinomas hepatocelulares em que a idade estava disponível nos protocolos, 64,7% e 77,8% eram idosos, respectivamente. Na necropsia, colangiocarcinomas caracterizaram-se principalmente por ocorrerem em um padrão multinodular (83,3%), enquanto carcinomas hepatocelulares ocorreram tanto de forma massiva (44,4%) quanto nodular (44,4%). Metástases extra-hepáticas foram vistas em 77,8% e 33,3% dos casos de colangiocarcinomas e carcinomas hepatocelulares, respectivamente, e em relação aos colangiocarcinomas afetaram principalmente pulmões (52,8%), linfonodos (50%) e peritônio (19,4%). Ascite (22,2%) e icterícia (22,2%) foram achados associados ocasionalmente com ambos os tumores. Na histologia, a maior parte dos colangiocarcinomas (86,1%) e dos carcinomas hepatocelulares (55,6%) tinha padrão tubular e trabecular, respectivamente. Na imuno-histoquímica, a maioria (63,9%) dos colangiocarcinomas demonstrou imunomarcação para CK7 e nenhum imunomarcou para Hep Par 1. A maioria (55,6%) dos carcinomas hepatocelulares demonstrou imunomarcação para Hep Par 1 e nenhum imunomarcou para CK7. Os resultados aqui apresentados demonstram uma altíssima prevalência de THMP, principalmente colangiocarcinomas, e servem para auxiliar, através dos achados de necropsia, histologia e imuno-histoquímica, patologistas veterinários no diagnóstico dessa tão comum forma de câncer em cães da Região Central do RS, Brasil.
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Andrade RL, Oliveira DM, Dantas AFM, Souza APD, Nóbrega Neto PID, Riet-Correa F. Tumores de cães e gatos diagnosticados no semiárido da Paraíba. PESQUISA VETERINARIA BRASILEIRA 2012. [DOI: 10.1590/s0100-736x2012001000016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Objetivou-se com este estudo determinar a frequência dos tumores diagnosticados em cães e gatos no Hospital Veterinário da Universidade Federal de Campina Grande (UFCG), Patos, Paraíba, Brasil, entre os anos de 2003 a 2010. Foram revisados todos os protocolos de necropsias e biópsias realizadas no Laboratório de Patologia Animal da referida instituição, e computados os dados referentes aos animais afetados. Os tumores mais frequentes em cães ocorreram na pele e anexos (46,7%), seguido da glândula mamária (24%), sistema genital (10,3%) e sistema digestório (6,5%). Os tumores malignos foram mais frequentes que os benignos (p=0,001), representando 78% e 22% respectivamente. Em gatos, as frequências de neoplasmas de pele e glândula mamária foram idênticas (39,4% cada), seguidas das do sistema digestório (8,5%) e fígado (5,7%). Os tumores malignos representaram 95,8% dos tumores diagnosticados nesta espécie. Cães sem raça definida tiveram menor frequência (16%) de tumores do que animais de diferentes raças (37,2%) (p<0,0001). A ampla variedade de neoplasmas que acomete cães e gatos dificulta ao veterinário o diagnóstico clínico e o tratamento das mesmas, sendo recomendável o diagnóstico histológico sistemático de todas as lesões suspeitas de serem neoplasias. Além disso, são necessários estudos que determinem os fatores epidemiológicos envolvidos no desenvolvimento dos tumores que acometem os cães e gatos, nas diferentes regiões, a fim de serem tomadas medidas para diminuir sua ocorrência e letalidade.
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Priebe A, Riet-Correa G, Paredes L, Costa M, Silva C, Almeida M. Ocorrência de neoplasias em cães e gatos da mesorregião metropolitana de Belém, PA entre 2005 e 2010. ARQ BRAS MED VET ZOO 2011. [DOI: 10.1590/s0102-09352011000600042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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