RESUMEN

O objetivo deste estudo foi identificar as principais doenças de felinos na região sul do Rio Grande do Sul. Foram revisados os protocolos de necropsia e das amostras biológicas de felinos encaminhados ao Laboratório Regional de Diagnóstico da Faculdade de Veterinária da Universidade Federal de Pelotas (LRD/UFPel), no período de 1978 a 2018. Nesse período foram recebidas 1633 amostras de felinos, sendo 363 (22%) entre os anos de 1978 e 1999 e 1270 (78%) entre os anos de 2000 e 2018. Com relação aos diagnósticos, 457 felinos (28%) apresentaram tumores benignos ou malignos, sendo os tegumentares e os mamários os mais frequentes. As doenças bacterianas, fúngicas, virais, parasitárias, sem agente definido e as intoxicações totalizaram 554 casos (33,9%), destacando-se a esporotricose, com 12,8% dos diagnósticos. Concluiu-se que, na região sul do RS, o encaminhamento de felinos para diagnóstico aumentou significativamente após o ano 2000, comprovando que a espécie passou a ter maior importância como animal de companhia. Concluiu-se, também, que as neoplasias têm papel relevante entre as doenças de felinos e que a esporotricose é uma das mais importantes zoonoses na região.(AU)

The goal of this paper was to identify the main disease affecting felines in the southern region of Rio Grande do Sul. The necropsy protocols and feline biological materials submitted to the Regional Diagnostic Laboratory of the Veterinary College of the Federal University of Pelotas (LRD / UFPel) were reviewed, from 1978 to 2018. During this period 1633 feline samples were received, 363 (22%) between 1978 and 1999 and 1270 (78%) between 2000 and 2018. 59% of felines did not present a defined breed. As for diagnoses, 457 felines (28%) presented benign or malignant tumors, the most common being the integumentary and mammary tumors. Bacterial, fungal, viral, parasitic or undefined agent infections and intoxications were observed in 554 cases (33.9%), especially sporotrichosis with 12.8 % of the diagnoses. It was concluded that in southern RS the referral of cats for diagnosis increased significantly after the year 2000, proving that they became more significant as companion animals. It was also concluded that neoplasia play a relevant role among feline diseases, and that sporotrichosis is one of the most important zoonoses in the region.(AU)

Asunto(s)

RESUMEN

Mammary tumors in female dogs are the most frequent and corresponds to half of the canine tumors. The objectives of this study were to determine the risk factors associated with the occurrence of mammary tumors in female dogs and to evaluate the macroscopic characteristics of these neoformations, using 386 dogs from the "Outubro Rosa Pets" events done within the cities of Uberlândia and Patos de Minas, Minas Gerais State, Brazil, in 2015 (n=194), 2016 (n=105) and 2017 (n=87). For the determination of risk factors, the binary logistic regression test (P<0.05) was performed. The occurrence of mammary tumors was 23.6% (91/386). The significant risk factors identified were increased age (P<0.001), overweight (P=0.048) and non-castration (P<0.001) with a chance of, respectively, 1.6, 2.3 and 9.3 times for the development of mammary tumors. In dogs with mammary tumors (n=91), 153 lesions were present, of which 39 female dogs had two or more lesions (42.8%). Most of the lesions were at the caudal abdominal (M4) and inguinal (M5) mammary glands (60.13%, 92/153). Relative to the size of the lesions, it was observed that in 78% of the female dogs the lesions were determined asT1 (<3cm), 16.5% were T2 (3-5cm) and 5.5% T3 (>5cm). At least 15.4% (14/91) of the dogs had one of the regional lymph nodes increased. In conclusion, the occurrence of mammary tumors in the evaluated population was 23.6% and that age, overweight and non-realization of ovariohysterectomy are risk factors associated with the development of mammary tumors.(AU)

Em cadelas os tumores mamários são os mais frequentes e correspondem a aproximadamente metade dos tumores em cães. Este estudo teve os objetivos de determinar os fatores de risco envolvidos na ocorrência de tumores mamários em cadelas e avaliar as características macroscópicas destas neoformações, utilizando 386 cadelas do evento "Outubro Rosa Pets" nos municípios de Uberlândia e Patos de Minas, Minas Gerais, Brasil, em 2015 (n=194), 2016 (n=105) e 2017 (n=87). Para a determinação dos fatores de risco utilizou-se o teste de Regressão logística binária (P<0,05). A ocorrência de tumores mamários foi de 23,6% (91/386). Os fatores de risco significativos identificados foram aumento da idade (P<0,001), sobrepeso (P=0,048) e não-castração (P<0,001) com a chance de, respectivamente, 1,6, 2,3 e 9,3 vezes de desenvolvimento de tumores mamários. Nas cadelas com tumores mamários (n=91), constatou-se a presença de 153 lesões, sendo que 39 cadelas apresentaram duas ou mais lesões (42,8%). A maioria das lesões localizaram-se nas mamas abdominais caudais (M4) e inguinais (M5) (60,13%; 92/153). Em relação ao tamanho das lesões, observou-se que 78% das cadelas eram T1 (<3cm), 16,5% T2 (3-5cm) e 5,5% T3 (>5cm). Pelo menos 15,4% (14/91) das cadelas apresentaram um dos linfonodos regionais aumentados. Conclui-se que a ocorrência dos tumores mamários na população avaliada foi de 23,6% e que a idade, sobrepeso e não ovariohisterectomia são fatores de risco para o desenvolvimento de tumores mamários.(AU)

Asunto(s)

RESUMEN

Mammary tumors in female dogs are the most frequent and corresponds to half of the canine tumors. The objectives of this study were to determine the risk factors associated with the occurrence of mammary tumors in female dogs and to evaluate the macroscopic characteristics of these neoformations, using 386 dogs from the "Outubro Rosa Pets" events done within the cities of Uberlândia and Patos de Minas, Minas Gerais State, Brazil, in 2015 (n=194), 2016 (n=105) and 2017 (n=87). For the determination of risk factors, the binary logistic regression test (P<0.05) was performed. The occurrence of mammary tumors was 23.6% (91/386). The significant risk factors identified were increased age (P<0.001), overweight (P=0.048) and non-castration (P<0.001) with a chance of, respectively, 1.6, 2.3 and 9.3 times for the development of mammary tumors. In dogs with mammary tumors (n=91), 153 lesions were present, of which 39 female dogs had two or more lesions (42.8%). Most of the lesions were at the caudal abdominal (M4) and inguinal (M5) mammary glands (60.13%, 92/153). Relative to the size of the lesions, it was observed that in 78% of the female dogs the lesions were determined asT1 (<3cm), 16.5% were T2 (3-5cm) and 5.5% T3 (>5cm). At least 15.4% (14/91) of the dogs had one of the regional lymph nodes increased. In conclusion, the occurrence of mammary tumors in the evaluated population was 23.6% and that age, overweight and non-realization of ovariohysterectomy are risk factors associated with the development of mammary tumors.(AU)

Em cadelas os tumores mamários são os mais frequentes e correspondem a aproximadamente metade dos tumores em cães. Este estudo teve os objetivos de determinar os fatores de risco envolvidos na ocorrência de tumores mamários em cadelas e avaliar as características macroscópicas destas neoformações, utilizando 386 cadelas do evento "Outubro Rosa Pets" nos municípios de Uberlândia e Patos de Minas, Minas Gerais, Brasil, em 2015 (n=194), 2016 (n=105) e 2017 (n=87). Para a determinação dos fatores de risco utilizou-se o teste de Regressão logística binária (P<0,05). A ocorrência de tumores mamários foi de 23,6% (91/386). Os fatores de risco significativos identificados foram aumento da idade (P<0,001), sobrepeso (P=0,048) e não-castração (P<0,001) com a chance de, respectivamente, 1,6, 2,3 e 9,3 vezes de desenvolvimento de tumores mamários. Nas cadelas com tumores mamários (n=91), constatou-se a presença de 153 lesões, sendo que 39 cadelas apresentaram duas ou mais lesões (42,8%). A maioria das lesões localizaram-se nas mamas abdominais caudais (M4) e inguinais (M5) (60,13%; 92/153). Em relação ao tamanho das lesões, observou-se que 78% das cadelas eram T1 (<3cm), 16,5% T2 (3-5cm) e 5,5% T3 (>5cm). Pelo menos 15,4% (14/91) das cadelas apresentaram um dos linfonodos regionais aumentados. Conclui-se que a ocorrência dos tumores mamários na população avaliada foi de 23,6% e que a idade, sobrepeso e não ovariohisterectomia são fatores de risco para o desenvolvimento de tumores mamários.(AU)

Asunto(s)

RESUMEN

Environmental factors during perinatal life can lead to changes in the mammary gland, making it susceptible to cancer in adulthood. Breastfeeding has a special importance since it takes place at a critical period of growth and development of the newborn. We aimed to analyze if an appropriate lactation protects the offspring against mammary carcinogenesis during adult life and explore the mechanisms involved in the protective effect. One-day-old Sprague-Dawley female rats were randomly distributed in litters of three (L3), eight (L8) or 12 (L12) pups per dam, to induce a differential consumption of breast milk. At 55 days of age, the animals were treated with a single dose of dimethylbenzanthracene to study tumor latency, incidence and progression. Histological, immunohistochemical and Western blot studies were performed. We observed lower incidence and higher latency in L3 compared to the other groups. The mitotic index and expression of proliferating cell nuclear antigen (PCNA) was significantly augmented in tumors of L12 rats compared to L3 and L8, while the apoptotic index was augmented in tumors of L3 v. L12. Cleaved caspase 8 was significantly higher in tumors from L3 compared to L12. Tumors developed in L3 have a greater number of apoptotic bodies and a greater expression of caspase 8. These results demonstrate that the animals that maintained a higher intake of maternal milk (L3) presented lower incidence and greater tumor latency. Lower consumption of breast milk (L12) would increase tumor mitosis and the expression of PCNA, explaining the higher tumor incidence observed in this group.

Asunto(s)

RESUMEN

Background: Mammary tumours represent about 50 to 70% of all neoplasms in female dogs and their occurrence is directlyrelated to the reproductive status and patient´s age. The purpose of this research was to apply the Brazilian consensus ondiagnosis, prognosis and treatment of canine mammary tumours and to define the regional epidemiological aspects ofcanine mammary gland tumours in Vitoria metropolitan region (ES, Brazil) between 2012 and 2016 and to correlate themacroscopic characteristics such as lesion size and location of the neoplasm with histopathological diagnosis, tumoursgrade and lymph node metastasis.Materials, Methods & Results: Data were collected from the archives of the Laboratory of Animal Pathology of UVV andmedical records of patients attended at the Veterinary Hospital Prof. Ricardo Alexandre Hippler in 5 years (2012 to 2016). Theanimals were separated into groups by age to facilitate classification in the group with the highest occurrence of neoplasms. Theevaluation of the macroscopic characteristics was performed through the histopathological record described in the pathologylaboratory, for each patient, at the time of the initial evaluation. After descriptive analysis, data was correlated using Spearmanntest, and frequency dispersion was evaluated using chi-square test, both in the software Graph Pad Prism v. 6.01. This studyincluded 255 bitches and diagnosis of 486 lesions, once 48.6% of the dogs had more than one lesion, classified according tothe Brazilian Consensus for Canine Mammary Tumours and graded according to Elston and Ellis system. 86.8% of lesionswere consistent with actual mammary neoplasms, of which 67% were malignant and 20% were benign. Non-neoplastic lesionscorresponded to 7.2% of cases and 5.8% were extra-mammary neoplasms, with an increased incidence of lipomas (39.3%) andmast cell tumours (32.1%). Cross-breed dogs represented 26.7% of cases. Poodles (25.5%), Pinschers (9.8%) and Dachshund(4.7%)...

Asunto(s)

RESUMEN

Background: Mammary tumours represent about 50 to 70% of all neoplasms in female dogs and their occurrence is directlyrelated to the reproductive status and patient´s age. The purpose of this research was to apply the Brazilian consensus ondiagnosis, prognosis and treatment of canine mammary tumours and to define the regional epidemiological aspects ofcanine mammary gland tumours in Vitoria metropolitan region (ES, Brazil) between 2012 and 2016 and to correlate themacroscopic characteristics such as lesion size and location of the neoplasm with histopathological diagnosis, tumoursgrade and lymph node metastasis.Materials, Methods & Results: Data were collected from the archives of the Laboratory of Animal Pathology of UVV andmedical records of patients attended at the Veterinary Hospital Prof. Ricardo Alexandre Hippler in 5 years (2012 to 2016). Theanimals were separated into groups by age to facilitate classification in the group with the highest occurrence of neoplasms. Theevaluation of the macroscopic characteristics was performed through the histopathological record described in the pathologylaboratory, for each patient, at the time of the initial evaluation. After descriptive analysis, data was correlated using Spearmanntest, and frequency dispersion was evaluated using chi-square test, both in the software Graph Pad Prism v. 6.01. This studyincluded 255 bitches and diagnosis of 486 lesions, once 48.6% of the dogs had more than one lesion, classified according tothe Brazilian Consensus for Canine Mammary Tumours and graded according to Elston and Ellis system. 86.8% of lesionswere consistent with actual mammary neoplasms, of which 67% were malignant and 20% were benign. Non-neoplastic lesionscorresponded to 7.2% of cases and 5.8% were extra-mammary neoplasms, with an increased incidence of lipomas (39.3%) andmast cell tumours (32.1%). Cross-breed dogs represented 26.7% of cases. Poodles (25.5%), Pinschers (9.8%) and Dachshund(4.7%)...(AU)

Asunto(s)

RESUMEN

Background: Mammary tumors are a type of neoplasia that are most commonly found in female dogs and are mostly malignant. The aim of this study, performed in the Laboratory of Veterinary Pathology of the Federal University of Uberlândia (LVP-FUU) from 2004 to 2014, was to determine the prevalence of mammary tumors in bitches and to verify the relationship between the epidemiological factors (age and breed) and clinicopathological aspects (ulceration, tumor size, and malignancy) in the occurrence of tumors.Materials, Methods & Results: A retrospective study was carried out using histopathological information retrieved from the LPV-UFU database. We collected the information on age and breed of female dogs, as well as about the location, macroscopic aspects, and histological diagnosis of mammary lesions. Only female dogs were considered for this study; a total of 911 histo-pathological protocols (with only one diagnosis) were analyzed along with 36 protocols that presented more than one diagnosis of mammary tumor. The age of animals ranged from one to 20 years, and the mean age was 9.99 years. The most affected breeds of dogs were: Cross breed (39.56% - 288/728) and Poodle (20.19% - 147/728). The inguinal glands were most affected by the malignant tumors (P< 0.05). A prevalence of tumors bigger than 5 cm in diameter (T3) was observed in the elderly animals (P= 0.0154) and in the inguinal mammary glands (P= 0.044). Simple carcinoma was the most frequent histological type.[...]

Asunto(s)

RESUMEN

Background: Mammary tumors are a type of neoplasia that are most commonly found in female dogs and are mostly malignant. The aim of this study, performed in the Laboratory of Veterinary Pathology of the Federal University of Uberlândia (LVP-FUU) from 2004 to 2014, was to determine the prevalence of mammary tumors in bitches and to verify the relationship between the epidemiological factors (age and breed) and clinicopathological aspects (ulceration, tumor size, and malignancy) in the occurrence of tumors.Materials, Methods & Results: A retrospective study was carried out using histopathological information retrieved from the LPV-UFU database. We collected the information on age and breed of female dogs, as well as about the location, macroscopic aspects, and histological diagnosis of mammary lesions. Only female dogs were considered for this study; a total of 911 histo-pathological protocols (with only one diagnosis) were analyzed along with 36 protocols that presented more than one diagnosis of mammary tumor. The age of animals ranged from one to 20 years, and the mean age was 9.99 years. The most affected breeds of dogs were: Cross breed (39.56% - 288/728) and Poodle (20.19% - 147/728). The inguinal glands were most affected by the malignant tumors (P< 0.05). A prevalence of tumors bigger than 5 cm in diameter (T3) was observed in the elderly animals (P= 0.0154) and in the inguinal mammary glands (P= 0.044). Simple carcinoma was the most frequent histological type.[...](AU)

Asunto(s)

RESUMEN

Os tumores de mama estão sendo estudados com diligencia na medicina veterinária. Com isso, é necessária a compreensão dos fatores epidemiológicos dos mesmos. Na região do Oeste Paulista, há uma acentuada frequência de neoplasias mamárias. Parece haver uma maior constância de tumores malignos, principalmente em animais idosos. O presente trabalho busca enfatizar a correlação entre neoplasias, idade e raça nos animais atendidos no hospital veterinário de Presidente Prudente, no período de 2013 a 2015. Durante este período, foram feitos exames histopatológicos e diagnosticados em 68 animais, 64 tumores malignos, três benignos e uma lesão não neoplásica.A média de idade dos animais foi de 10,7 anos e cães da raça Poodle e sem raça definida foram mais acometidos. Os resultados do presente estudo evidenciaram uma alta frequência de tumores malignos em cadelas idosas.

The incidence of mammary gland tumors in female dogs have been studied in veterinary medicine. Thus, the understanding of the epidemiological factors is required. In western of São Paulo region, there is a high frequency of breast tumors, mainly malignant tumors in older animals. The aim of this study was evaluate the data about histopathological diagnosis, breed and age in female dogs with mammary tumors presented at the Veterinary Hospital of Universidade do Oeste Paulista during 2013 to 2015. Histopathological examination were performed in samples of 68 animals and 64 presented malignant tumors, three benign tumors and one non-neoplastic lesion. The mean age of female dogs was 10.7 years. The Poodle and mixed breed dogs were more affected. The results of the present study showed a high frequency of malignant tumors in mammary glands of old female dogs.

Asunto(s)

RESUMEN

Os tumores de mama estão sendo estudados com diligencia na medicina veterinária. Com isso, é necessária a compreensão dos fatores epidemiológicos dos mesmos. Na região do Oeste Paulista, há uma acentuada frequência de neoplasias mamárias. Parece haver uma maior constância de tumores malignos, principalmente em animais idosos. O presente trabalho busca enfatizar a correlação entre neoplasias, idade e raça nos animais atendidos no hospital veterinário de Presidente Prudente, no período de 2013 a 2015. Durante este período, foram feitos exames histopatológicos e diagnosticados em 68 animais, 64 tumores malignos, três benignos e uma lesão não neoplásica.A média de idade dos animais foi de 10,7 anos e cães da raça Poodle e sem raça definida foram mais acometidos. Os resultados do presente estudo evidenciaram uma alta frequência de tumores malignos em cadelas idosas.(AU)

The incidence of mammary gland tumors in female dogs have been studied in veterinary medicine. Thus, the understanding of the epidemiological factors is required. In western of São Paulo region, there is a high frequency of breast tumors, mainly malignant tumors in older animals. The aim of this study was evaluate the data about histopathological diagnosis, breed and age in female dogs with mammary tumors presented at the Veterinary Hospital of Universidade do Oeste Paulista during 2013 to 2015. Histopathological examination were performed in samples of 68 animals and 64 presented malignant tumors, three benign tumors and one non-neoplastic lesion. The mean age of female dogs was 10.7 years. The Poodle and mixed breed dogs were more affected. The results of the present study showed a high frequency of malignant tumors in mammary glands of old female dogs.(AU)

Asunto(s)

RESUMEN

Mammary gland tumors are the most common type of tumors in bitches but research on survival time after diagnosis is scarce. The purpose of this study was to investigate the relationship between survival time after mastectomy and a number of clinical and morphological variables. Data was collected retrospectively on bitches with mammary tumors seen at the Small Animal Surgery Clinic Service at the University of Brasília. All subjects had undergone mastectomy. Survival analysis was conducted using Cox's proportional hazard method. Of the 139 subjects analyzed, 68 died and 71 survived until the end of the study (64 months). Mean age was 11.76 years (SD=2.71), 53.84% were small dogs. 76.92% of the tumors were malignant, and 65.73% had both thoracic and inguinal glands affected. Survival time in months was associated with age (hazard rate ratios [HRR] =1.23, p-value =1.4x10-4), animal size (HRR between giant and small animals =2.61, p-value =0.02), nodule size (HRR =1.09, p-value =0.03), histological type (HRR between solid carcinoma and carcinoma in a mixed tumor =2.40, p-value =0.02), time between diagnosis and surgery (TDS, with HRR =1.21, p-value =2.7x10-15), and the interaction TDS*follow-up time (HRR =0.98, p-value =1.6x10-11). The present study is one of the few on the subject matter. Several important covariates were evaluated and age, animal size, nodule size, histological type, TDS and TDS*follow up time were identified as significantly associated to survival time.(AU)

Os tumores da glândula mamária são o tipo mais comum de tumores em cadelas, porém, estudos sobre o tempo de sobrevida após o diagnóstico são escassos. Objetivou-se investigar a relação entre o tempo de sobrevida após a mastectomia, bem como variáveis clínicas e populacionais. Coletaram-se dados retrospectivos referentes a cadelas com tumores mamários atendidos no Serviço de Clínica Cirúrgica de Pequenos Animais da Universidade de Brasília e submetidas à mastectomia. A análise de sobrevida foi realizada mediante o método de Cox de risco proporcional. Dos 139 animais incluídos neste estudo, 68 morreram e 71 sobreviveram até ao final da conclusão deste traballho (64 meses). A média de idade foi de 11,76 anos (DP=2,71), 53,84% dos cães eram pequenos. Dentre os tumores, 76,92% eram malignos, e 65,73% tiveram as duas glândulas torácicas e a inguinal afetadas. O tempo de sobrevida em meses foi associado à idade (taxa de razão de risco [HRR] =1,23, p valor =1.4x10-4), o tamanho do animal (HRR entre animais gigantes e pequenos = 2,61, p=0,02), tamanho do nódulo (HRR=1,09, p valor =0,03), tipo histológico (HRR entre carcinoma sólido e carcinomas em tumor misto =2,40, p=0,02), tempo decorrido entre o diagnóstico e a cirurgia (TDC, com HRR =1,21, p valor =2,7 x10-15), e a interação TDC*tempo de seguimento (HRR = 0,98, p valor = 1.6x10-11). O presente estudo é um dos poucos sobre o assunto. Várias covariáveis importantes foram avaliadas e idade, tamanho do animal, o tamanho do nódulo, tipo histológico, TDC e TDC*tempo de seguimento foram identificados como significativamente associado ao tempo de sobrevida.(AU)

Asunto(s)

RESUMEN

Mammary gland tumors are the most common type of tumors in bitches but research on survival time after diagnosis is scarce. The purpose of this study was to investigate the relationship between survival time after mastectomy and a number of clinical and morphological variables. Data was collected retrospectively on bitches with mammary tumors seen at the Small Animal Surgery Clinic Service at the University of Brasília. All subjects had undergone mastectomy. Survival analysis was conducted using Cox's proportional hazard method. Of the 139 subjects analyzed, 68 died and 71 survived until the end of the study (64 months). Mean age was 11.76 years (SD=2.71), 53.84% were small dogs. 76.92% of the tumors were malignant, and 65.73% had both thoracic and inguinal glands affected. Survival time in months was associated with age (hazard rate ratios [HRR] =1.23, p-value =1.4x10-4), animal size (HRR between giant and small animals =2.61, p-value =0.02), nodule size (HRR =1.09, p-value =0.03), histological type (HRR between solid carcinoma and carcinoma in a mixed tumor =2.40, p-value =0.02), time between diagnosis and surgery (TDS, with HRR =1.21, p-value =2.7x10-15), and the interaction TDS*follow-up time (HRR =0.98, p-value =1.6x10-11). The present study is one of the few on the subject matter. Several important covariates were evaluated and age, animal size, nodule size, histological type, TDS and TDS*follow up time were identified as significantly associated to survival time.

Os tumores da glândula mamária são o tipo mais comum de tumores em cadelas, porém, estudos sobre o tempo de sobrevida após o diagnóstico são escassos. Objetivou-se investigar a relação entre o tempo de sobrevida após a mastectomia, bem como variáveis clínicas e populacionais. Coletaram-se dados retrospectivos referentes a cadelas com tumores mamários atendidos no Serviço de Clínica Cirúrgica de Pequenos Animais da Universidade de Brasília e submetidas à mastectomia. A análise de sobrevida foi realizada mediante o método de Cox de risco proporcional. Dos 139 animais incluídos neste estudo, 68 morreram e 71 sobreviveram até ao final da conclusão deste traballho (64 meses). A média de idade foi de 11,76 anos (DP=2,71), 53,84% dos cães eram pequenos. Dentre os tumores, 76,92% eram malignos, e 65,73% tiveram as duas glândulas torácicas e a inguinal afetadas. O tempo de sobrevida em meses foi associado à idade (taxa de razão de risco [HRR] =1,23, p valor =1.4x10-4), o tamanho do animal (HRR entre animais gigantes e pequenos = 2,61, p=0,02), tamanho do nódulo (HRR=1,09, p valor =0,03), tipo histológico (HRR entre carcinoma sólido e carcinomas em tumor misto =2,40, p=0,02), tempo decorrido entre o diagnóstico e a cirurgia (TDC, com HRR =1,21, p valor =2,7 x10-15), e a interação TDC*tempo de seguimento (HRR = 0,98, p valor = 1.6x10-11). O presente estudo é um dos poucos sobre o assunto. Várias covariáveis importantes foram avaliadas e idade, tamanho do animal, o tamanho do nódulo, tipo histológico, TDC e TDC*tempo de seguimento foram identificados como significativamente associado ao tempo de sobrevida.

Asunto(s)

RESUMEN

Epidemiological studies enable us to analyze disease behavior, define risk factors and establish fundamental prognostic criteria, with the purpose of studying different types of diseases. The aim of this study was to determine the epidemiological characteristics of canine mammary tumors diagnosed during the period 2002-2012. The study was based on a retrospective study consisting of 1,917 biopsies of intact dogs that presented mammary gland lesions. Biopsies were sent to the Department of Pathology FMVZ-UNAM diagnostic service. The annual incidence of mammary tumors was 16.8%: 47.7% (benign) and 47.5% (malignant). The highest number of cases was epithelial, followed by mixed tumors. The most commonly diagnosed tumors were tubular adenoma, papillary adenoma, tubular carcinoma, papillary carcinoma, solid carcinoma, complex carcinoma and carcinosarcoma. Pure breeds accounted for 80% of submissions, and the Poodle, Cocker Spaniel and German Shepherd were consistently affected. Adult female dogs (9 to 12 years old) were most frequently involved, followed by 5- to 8-year-old females. Some association between breeds with histological types of malignant tumors was observed, but no association was found between breeds and BN. Mammary tumors in intact dogs had a high incidence. Benign and malignant tumors had similar frequencies, with an increase in malignant tumors in the past four years of the study. Epithelial tumors were more common, and the most affected were old adult females, purebreds and small-sized dogs. Mammary tumors in dogs are an important animal health problem that needs to be solved by improving veterinary oncology services in Mexico.

Asunto(s)

RESUMEN

This study aims to characterize pathologic and epidemiologic data associated to clinical evaluation of dogs with mammary lesions at the Veterinary University Hospital of the Federal University of Pampa - Unipampa, Uruguaiana, Rio Grande do Sul, Brazil.[...]

Asunto(s)

RESUMEN

The purpose of this study was to analyse epidemiologic and pathological data related to clinical evaluation of dogs with mammary tumors admitted at the Veterinary Hospital of UFRGS, Porto Alegre, Brazil.[...]

Asunto(s)

RESUMEN

This study describes the pathological and epidemiological data related to clinical evaluation of bitches with mammary lesions treated at the Veterinary Hospital of the Universidade Estadual Paulista Júlio de Mesquita Filho, in Jaboticabal, São Paulo, Brazil. The study was based on clinical and pathological guidelines proposed at the First Meeting of Mammary Pathology: Diagnosis, Prognosis and Treatment of Canine Mammary Neoplasia, held on 6 and 7 November 2010, in Belo Horizonte, Minas Gerais, Brazil, sponsored by the Laboratory of Comparative Pathology - UFMG, with the support of the Brazilian Association of Veterinary Pathology (ABPV) and the Brazilian Association of Veterinary Oncology (ABROVET).[...]

Asunto(s)

RESUMEN

The aim of this study was to characterize the pathological and epidemiological data related to the clinical evaluation of canine patients with mammary lesions presented at the Veterinary Hospital of Federal University of Bahia, Salvador Bahia, Brazil.[...]

Asunto(s)

RESUMEN

The survey shows epidemiology and pathology information related to female dogs diagnosed with mammary tumors attended at Onco Cane, a specialized Veterinary Oncology Clinic, São Paulo, Brazil.[...]

Asunto(s)

RESUMEN

The aim of this study was to characterize the epidemiological, clinical and pathological data of canine mammary tumors at the Service of Veterinary Oncology of the Veterinary Hospital and Veterinary Diagnostic Laboratory of UFPel, at Pelotas, Rio Grande do Sul from 2010 to 2012.[...]

Asunto(s)

RESUMEN

This study aims to characterize epidemiological and histopathological data of canine patients with mammary tumors treated at the Veterinary Teaching Hospital of the Universidade Estadual de Londrina (HV/UEL), Paraná-Brazil.[...]

Asunto(s)