Neoplasias cutâneas caninas: um estudo descritivo de 4 anos
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2016-01-28
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As neoplasias cutâneas são as neoplasias mais frequentemente encontradas nos animais domésticos, o que se deve ao facto da pele, além de ser o maior e mais exposto de todos os órgãos, ser constituída, juntamente com o tecido subcutâneo, por uma grande variedade de células suscetíveis ao desenvolvimento de neoplasias.
Esta dissertação teve como objetivo descrever e confrontar com a bibliografia existente a casuística das neoplasias cutâneas caninas do Hospital Veterinário do Baixo Vouga entre os anos de 2010 e 2014.
Foram analisadas informações clínicas relativas à raça, idade e sexo dos canídeos, assim como a região corporal afetada, tendo sido incluídos neste estudo os animais com diagnóstico confirmado de neoplasia cutânea (n=84). A idade mais frequente na população em estudo foi de 8 anos (n=16; 19%), sendo a média de idades de 8,48 anos. Observou-se uma maior frequência de animais do sexo masculino (n=47; 56%), predominando a raça indeterminada (n=30; 35,7%) sobre as raças puras: seguiu-se a raça Labrador (n=16; 19%), raça Boxer (n=10; 11,9%) e raça Dog alemão (n=5; 6%).
Das 84 lesões neoplásicas em estudo, 58,3% eram de origem mesenquimatosa, 36,9% de origem epitelial e 4,8% de origem melanocítica, observando-se uma predominância de neoplasias de origem maligna (53,6%). As cinco principais neoplasias de pele encontradas em ordem decrescente de frequência foram: mastocitoma (25%), carcinoma das células escamosas (9,5%), lipoma (8,1%), adenoma das glândulas perianais (8,1%) e histiocitoma (5,8%).
Skin tumors constitute the most frequent type of neoplasia found in domestic animals. The prevalence in this body region is related to the fact that skin, beyond being the largest of all organs, is constituted by a great variety of susceptible cells to neoplastic development. This study intended to describe and compare with the existing scientific literature the casuistic of canine cutaneous neoplasms of Hospital Veterinário Baixo Vouga between the years of 2010 and 2014. Relevant clinical information was analysed, namely breed, age and sex of the animals, as well as the affected corporal region. This study included dogs with confirmed diagnosis of skin neoplasia (n = 84). The most common age in the study population was 8 years (n = 16, 19%), with a mean age of 8.48 years. We observed a higher frequency of male animals (n = 47, 56%), predominating the indeterminate breed (n = 30, 35.7%) over the purebreds: Labrador (n = 16; 19%), Boxer (n = 10, 11.9%) and German Dog (n = 5; 6%). Of the 84 neoplastic lesions in the study, 58.3% were of mesenchymal origin, 36.9% of epithelial origin and 4.8% of melanocytic origin. We observed a predominance of malignant neoplasms (53.6%). The top five skin tumors found in decreasing order of frequency were: mastocytoma (25%), squamous cell carcinoma (9.5%), lipoma (8.1%), perianal gland adenoma (8.1%) and histiocytoma (5.8%).
Skin tumors constitute the most frequent type of neoplasia found in domestic animals. The prevalence in this body region is related to the fact that skin, beyond being the largest of all organs, is constituted by a great variety of susceptible cells to neoplastic development. This study intended to describe and compare with the existing scientific literature the casuistic of canine cutaneous neoplasms of Hospital Veterinário Baixo Vouga between the years of 2010 and 2014. Relevant clinical information was analysed, namely breed, age and sex of the animals, as well as the affected corporal region. This study included dogs with confirmed diagnosis of skin neoplasia (n = 84). The most common age in the study population was 8 years (n = 16, 19%), with a mean age of 8.48 years. We observed a higher frequency of male animals (n = 47, 56%), predominating the indeterminate breed (n = 30, 35.7%) over the purebreds: Labrador (n = 16; 19%), Boxer (n = 10, 11.9%) and German Dog (n = 5; 6%). Of the 84 neoplastic lesions in the study, 58.3% were of mesenchymal origin, 36.9% of epithelial origin and 4.8% of melanocytic origin. We observed a predominance of malignant neoplasms (53.6%). The top five skin tumors found in decreasing order of frequency were: mastocytoma (25%), squamous cell carcinoma (9.5%), lipoma (8.1%), perianal gland adenoma (8.1%) and histiocytoma (5.8%).
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Dissertação de Mestrado Integrado em Medicina Veterinária
Palavras-chave
Cães , Neoplasias cutâneas , Casuística