Nódulos cutâneos no cão: estudo retrospectivo comparativo de diagnóstico citológico e histopatológico
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2016
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Os nódulos são lesões cutâneas encontradas com frequência no cão e a sua etiologia pode ser diversa, sendo uma delas neoplásica. As neoplasias cutâneas são as que mais afectam o cão, motivo pelo qual são de grande importância na área de Oncologia Veterinária. A citologia a histopatologia são os mais importantes meios auxiliares de diagnóstico destas lesões.
O presente trabalho teve como objectivo determinar a frequência de neoplasias cutâneas em cães, através de nódulos submetidos a análise num Hospital Veterinário do Grande Porto, durante o período compreendido entre Junho de 2007 e Maio de 2015. Foram ainda avaliados parâmetros como a idade, localização da lesão e, para as neoplasias malignas, o tempo médio de sobrevida dos pacientes. No total foram analisados 668 nódulos cutâneos.
Neste estudo, a neoplasia mais diagnosticada por citologia foi o lipoma (26,9%) e a neoplasia que mais se diagnosticou através de histopatologia foi o mastocitoma (14,2%). O mastocitoma foi também a neoplasia maligna mais diagnosticada por ambas as técnicas. Determinou-se que os membros foram a localização anatómica onde mais se desenvolveram nódulos cutâneos. Por fim, verificou-se que existe concordância entre os diagnósticos obtidos por análise citológica e os resultados obtidos por análise histopatológica, quando os casos são submetidos a ambas as técnicas de diagnóstico.
Nodules are skin lesions commonly found in dogs and their ethiology might be varied, being neoplastic origin one of them. Skin neoplasms are the ones which most affect the dog, being that one of the reasons that makes them so relevant in Veterinary Oncology. The most important methods to diagnose this kind of lesions are cytology and histopathology. Determining the frequency of skin neoplasms diagnosed in dogs in one Veterinary Hospital of central Oporto, between June 2007 and May 2015, was the main purpose of this study. Besides that, parameters such as age, location of the lesion and, in the case of malignant neoplasms, median survival time were also analysed. In total 668 skin nodules were submitted for analysis. In this study lipoma was the neoplasm most frequently diagnosed using cytology (26,9%) and mast cell tumor was the neoplasm most frequently diagnosed using histopathology (14,2%). Mast cell tumor was also the most diagnosed malignant neoplasm by both techniques. The limbs were the location where most nodules developed. It was also determined that the results of both methods of diagnosis were concordant, in cases submitted to both techniques of diagnosis.
Nodules are skin lesions commonly found in dogs and their ethiology might be varied, being neoplastic origin one of them. Skin neoplasms are the ones which most affect the dog, being that one of the reasons that makes them so relevant in Veterinary Oncology. The most important methods to diagnose this kind of lesions are cytology and histopathology. Determining the frequency of skin neoplasms diagnosed in dogs in one Veterinary Hospital of central Oporto, between June 2007 and May 2015, was the main purpose of this study. Besides that, parameters such as age, location of the lesion and, in the case of malignant neoplasms, median survival time were also analysed. In total 668 skin nodules were submitted for analysis. In this study lipoma was the neoplasm most frequently diagnosed using cytology (26,9%) and mast cell tumor was the neoplasm most frequently diagnosed using histopathology (14,2%). Mast cell tumor was also the most diagnosed malignant neoplasm by both techniques. The limbs were the location where most nodules developed. It was also determined that the results of both methods of diagnosis were concordant, in cases submitted to both techniques of diagnosis.
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Orientação : Rute Noiva ; co-orientação : Luís Montenegro
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MESTRADO INTEGRADO EM MEDICINA VETERINÁRIA, VETERINÁRIA, MEDICINA VETERINÁRIA, VETERINARY MEDICINE, CÃES, DOGS, CANÍDEOS, CANIDS, NEOPLASIAS, NEOPLASMS, DIAGNÓSTICOS, DIAGNOSES, CITOLOGIA, CYTOLOGY, HISTOPATOLOGIA, HISTOPATHOLOGY