Resumo
Background: Transmissible venereal tumor (TVT) is a neoplasm of round cells, that affects exclusively the canine specie. The etiology of the tumor is unknown, but the hystiocitic hipothesis is the more accepted. It is transmitted principally by the venereal form, but the inplant of cells can cause the disease. The clinic signs of the neoplasia are typical and include tumoral friable mass (in shape of cauliflower), that bleed easily. The most common localization is external genitalia, but the tumor can appears in skin surface and other organs. TVT grows rapidly (progressive phase) after transplantation, followed by a static phase (without cell proliferation) and then may regress spontaneously (stage of regression). The regression of the neoplasia is associated with increased infiltration of T lymphocytes and macrophages in the tumor and characterized by increased apoptosis of tumor cells and fibrosis. The diagnosis of TVT is usually done by the physical aspect of the tumor, and confirmed by cytology or histopathology. TVT can be prevented by castration of the animals. The treatment of TVT is usually performed with vincristine, which has side effects, requires care in its application, and has a relatively high cost. Thus, new therapeutic low-cost alternatives are suggested, as is the case of autohemotherapy. The autohemotherapy technique consists of administration of autologous w
Background: Transmissible venereal tumor (TVT) is a neoplasm of round cells, that affects exclusively the canine specie. The etiology of the tumor is unknown, but the hystiocitic hipothesis is the more accepted. It is transmitted principally by the venereal form, but the inplant of cells can cause the disease. The clinic signs of the neoplasia are typical and include tumoral friable mass (in shape of cauliflower), that bleed easily. The most common localization is external genitalia, but the tumor can appears in skin surface and other organs. TVT grows rapidly (progressive phase) after transplantation, followed by a static phase (without cell proliferation) and then may regress spontaneously (stage of regression). The regression of the neoplasia is associated with increased infiltration of T lymphocytes and macrophages in the tumor and characterized by increased apoptosis of tumor cells and fibrosis. The diagnosis of TVT is usually done by the physical aspect of the tumor, and confirmed by cytology or histopathology. TVT can be prevented by castration of the animals. The treatment of TVT is usually performed with vincristine, which has side effects, requires care in its application, and has a relatively high cost. Thus, new therapeutic low-cost alternatives are suggested, as is the case of autohemotherapy. The autohemotherapy technique consists of administration of autologous w
Resumo
O otohematoma canino é um caso clínico comum na rotina da clínica médica de pequenos animais. Os principais fatores predisponentes correspondem a raça, sexo, idade, anatomia do pavilhão auricular e presença de outras afecções concomitantes. O presente trabalho objetivou a caracterização epidemiológica do hematoma auricular na espécie canina. Realizou-se um estudo retrospectivo utilizando os dados recolhidos das fichas clínicas de 55 cães com otohematoma, atendidos no Hospital Veterinário da Universidade Federal do Piauí, no período compreendido entre janeiro de 2007 a dezembro de 2008. O sexo masculino foi o mais acometido, com 62% dos casos. A faixa etária de maior representação variou de 7 a 8 anos de idade (29%). Os animais Sem Raça Definida possuíram destaque em relação à frequência de otoematoma (41%), seguindo-se dos indivíduos da raça Pastor Alemão (34%) e Fila Brasileiro (5%). A maioria dos pacientes apresentou um peso corporal superior a 20 Kg (71%). Os resultados obtidos sugeriram que o hematoma auricular canino apresentou alguns fatores de risco, como a idade adulta e o porte elevado do animal.
Resumo
O otohematoma canino é um caso clínico comum na rotina da clínica médica de pequenos animais. Os principais fatores predisponentes correspondem a raça, sexo, idade, anatomia do pavilhão auricular e presença de outras afecções concomitantes. O presente trabalho objetivou a caracterização epidemiológica do hematoma auricular na espécie canina. Realizou-se um estudo retrospectivo utilizando os dados recolhidos das fichas clínicas de 55 cães com otohematoma, atendidos no Hospital Veterinário da Universidade Federal do Piauí, no período compreendido entre janeiro de 2007 a dezembro de 2008. O sexo masculino foi o mais acometido, com 62% dos casos. A faixa etária de maior representação variou de 7 a 8 anos de idade (29%). Os animais Sem Raça Definida possuíram destaque em relação à frequência de otoematoma (41%), seguindo-se dos indivíduos da raça Pastor Alemão (34%) e Fila Brasileiro (5%). A maioria dos pacientes apresentou um peso corporal superior a 20 Kg (71%). Os resultados obtidos sugeriram que o hematoma auricular canino apresentou alguns fatores de risco, como a idade adulta e o porte elevado do animal.
Resumo
Background: Transmissible venereal tumor (TVT) is a neoplasm of round cells, that affects exclusively the canine specie. The etiology of the tumor is unknown, but the hystiocitic hipothesis is the more accepted. It is transmitted principally by the venereal form, but the inplant of cells can cause the disease. The clinic signs of the neoplasia are typical and include tumoral friable mass (in shape of cauliflower), that bleed easily. The most common localization is external genitalia, but the tumor can appears in skin surface and other organs. TVT grows rapidly (progressive phase) after transplantation, followed by a static phase (without cell proliferation) and then may regress spontaneously (stage of regression). The regression of the neoplasia is associated with increased infiltration of T lymphocytes and macrophages in the tumor and characterized by increased apoptosis of tumor cells and fibrosis. The diagnosis of TVT is usually done by the physical aspect of the tumor, and confirmed by cytology or histopathology. TVT can be prevented by castration of the animals. The treatment of TVT is usually performed with vincristine, which has side effects, requires care in its application, and has a relatively high cost. Thus, new therapeutic low-cost alternatives are suggested, as is the case of autohemotherapy. The autohemotherapy technique consists of administration of autologous w
Background: Transmissible venereal tumor (TVT) is a neoplasm of round cells, that affects exclusively the canine specie. The etiology of the tumor is unknown, but the hystiocitic hipothesis is the more accepted. It is transmitted principally by the venereal form, but the inplant of cells can cause the disease. The clinic signs of the neoplasia are typical and include tumoral friable mass (in shape of cauliflower), that bleed easily. The most common localization is external genitalia, but the tumor can appears in skin surface and other organs. TVT grows rapidly (progressive phase) after transplantation, followed by a static phase (without cell proliferation) and then may regress spontaneously (stage of regression). The regression of the neoplasia is associated with increased infiltration of T lymphocytes and macrophages in the tumor and characterized by increased apoptosis of tumor cells and fibrosis. The diagnosis of TVT is usually done by the physical aspect of the tumor, and confirmed by cytology or histopathology. TVT can be prevented by castration of the animals. The treatment of TVT is usually performed with vincristine, which has side effects, requires care in its application, and has a relatively high cost. Thus, new therapeutic low-cost alternatives are suggested, as is the case of autohemotherapy. The autohemotherapy technique consists of administration of autologous w