F. N. Paiva, S. Moreira, Laís Calazans Menescal Linhares, F. Sueiro, A. B. Nardi, P. Jark
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The presence of metastasis was also assessed in cases where lymph nodes were sampled. Simple descriptive statistical analysis was used to evaluate the data. Adult and elderly, female, and mixed-breed animals were more involved, indicating differences from international studies that can be attributed to sociocultural factors. In terms of tumor size, it was observed that 93% of the cases had the largest diameter above 2.5cm. Only 7% of the cases had the largest diameter below 2.5cm, demonstrating the often late diagnosis and the importance of rectal palpation examination during the general physical assessment of canine patients, particularly at an advanced age. Regarding lymphatic invasion and affected lymph nodes, 50% of the cases had lymphatic invasion described in the histopathological examination. However, only 5% of the lymph nodes were sent along with the primary tumor, indicating the disease’s aggressive behavior but with possible metastases underdiagnosed.","PeriodicalId":19991,"journal":{"name":"Pesquisa Veterinaria Brasileira","volume":null,"pages":null},"PeriodicalIF":0.8000,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Retrospective evaluation of canine anal sac carcinoma (260 cases) in Brazil: late detection and failures in lymph node evaluation\",\"authors\":\"F. N. Paiva, S. Moreira, Laís Calazans Menescal Linhares, F. Sueiro, A. B. Nardi, P. Jark\",\"doi\":\"10.1590/1678-5150-pvb-7210\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"ABSTRACT: Anal sac neoplasms are common in companion animals, and the epidemiological profile has been extensively described in international studies; however, national data are still lacking. 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Retrospective evaluation of canine anal sac carcinoma (260 cases) in Brazil: late detection and failures in lymph node evaluation
ABSTRACT: Anal sac neoplasms are common in companion animals, and the epidemiological profile has been extensively described in international studies; however, national data are still lacking. Data on the Brazilian reality of anal sac carcinoma cases’ diagnosis and treatment are also scarce. The purpose of this study was to retrospectively evaluate cases of canine anal sac carcinoma and assess the profile of involvement, tumor size, and lymphatic invasion at the time of diagnosis. Information was obtained from Vetpat laboratory database, from 260 cases spanning a 12-year period (2010-2021). In histopathological evaluation at the time of diagnosis, data on sex, age, and race were described, as well as tumor size and lymphatic invasion. The presence of metastasis was also assessed in cases where lymph nodes were sampled. Simple descriptive statistical analysis was used to evaluate the data. Adult and elderly, female, and mixed-breed animals were more involved, indicating differences from international studies that can be attributed to sociocultural factors. In terms of tumor size, it was observed that 93% of the cases had the largest diameter above 2.5cm. Only 7% of the cases had the largest diameter below 2.5cm, demonstrating the often late diagnosis and the importance of rectal palpation examination during the general physical assessment of canine patients, particularly at an advanced age. Regarding lymphatic invasion and affected lymph nodes, 50% of the cases had lymphatic invasion described in the histopathological examination. However, only 5% of the lymph nodes were sent along with the primary tumor, indicating the disease’s aggressive behavior but with possible metastases underdiagnosed.
期刊介绍:
Pesquisa Veterinária Brasileira - Brazilian Journal of Veterinary Research (http://www.pvb.com.br), edited by the Brazilian College of Animal Pathology in partnership with the Brazilian Agricultural Research Organization (Embrapa) and in collaboration with other veterinary scientific associations, publishes original papers on animal diseases and related subjects. Critical review articles should be written in support of original investigation. The editors assume that papers submitted are not being considered for publication in other journals and do not contain material which has already been published. Submitted papers are peer reviewed.
The abbreviated title of Pesquisa Veterinária Brasileira is Pesqui. Vet. Bras.