RESUMO.O melanoma oral é uma neoplasia de pele e tecido subcutâneo de ocorrência comum em cães, o mesmo possui comportamento maligno e é originado a partir dos melanócitos. O diagnóstico é realizado por meio da observação dos sinais clínicos e exame histopatológico. Há vários métodos de tratamento, como extirpação cirúrgica, crioterapia, quimioterapia e radioterapia, contudo, o prognóstico é ruim devido à alta reincidiva e poder metastático. No referido trabalho é relatado um caso de melanoma metastático em um cão, com a presença de uma massa tumoral na cavidade oral, ulcerada e enegrecida, com deformidade aparente da face. Por fim, optou-se pela eutanásia do animal devido ao estado avançado da doença. Palavras chave: Canino, melanoma, neoplasia oral Metastatic melanoma in dogs: Case reportABSTRACT. Oral cavity melanoma is a common skin and subcutaneous tissue neoplasm in dogs, which has malignant behavior and originates from melanocytes. The diagnosis is made through the observation of clinical signs and histopathological examination. There are several treatment methods, such as surgical excision, cryotherapy, chemotherapy and radiotherapy, however, the prognosis is poor due to high relapse and metastatic power. In the mentioned work a case of metastatic melanoma in a dog is reported, with the presence of a tumor mass in the oral cavity, ulcerated and blackened, with apparent deformity of the face. Finally, the euthanasia of the animal was chosen due to the advanced state of the disease. Keywords: Melanoma, oral cavity neoplasm, canineMelanoma metastásico en canino: Reporte de un caso RESUMEN. El melanoma oral es un cáncer de la piel y tejido subcutáneo que se presenta comúnmente en perros, tiene un comportamiento maligno y se deriva de los melanocitos. El diagnóstico se realiza mediante la observación de los signos clínicos y la histopatología. Existen varios métodos de tratamiento, tales como la extirpación quirúrgica, la crioterapia, la quimioterapia y la radioterapia, sin embargo, el pronóstico es malo debido a la alta reincidencia y poder metastásico. En el presente trabajo es relatado un caso de melanoma metastásico en un perro, con presencia de un tumor en la cavidad oral, ulcerada y oscura

RESUMO. Na rotina médico-veterinária de cães e gatos há uma grande ocorrência de enfermidades que acometem o trato reprodutivo desses animais, acometendo em grande parte as fêmeas, podendo trazer consequências sérias como a infertilidade. Dentre as muitas patologias reprodutivas, citam-se com grande casuística a piometra (hiperplasia endometrial cística) e menos comumente a hiperplasia vaginal. A piomeira tende a ocorrer mais frequentemente em cadelas de meia idade ou animais idosos. Já a hiperplasia vaginal, acomete cadelas jovens devido à ação de estrogênio. Objetivou se com o presente estudo, relatar o caso de uma cadela, envolvendo ambas patologias. O tratamento de escolha realizado foi uma ovariosalpingohistectomia (OSH) e a paciente recuperou-se bem. Conclui-se que emergências reprodutivas requerem um diagnóstico adequado e tratamento mais precoce possível para evitar maiores danos à saúde no animal. A OSH mostrou-se efetiva e curativa nestas patologias.Palavras chave: Ciclo-estral, estrogênio, ovariosalpingohisterectomia, infecção Pyometra and vaginal hyperplasia in bitch: Case report ABSTRACT. In the medical-veterinary routine of dogs and cats there is a high occurrence of diseases that affect the reproductive tract of the animals, affecting mostly females, can have serious consequences such as infertility. Among the many reproductive pathologies, they cite yourself with large casuistry the pyometra (cystic endometrial hyperplasia) and less commonly the vaginal hyperplasia. The piomeira tends to occur most often in middleaged or elderly dogs animals. Already vaginal hyperplasia, affects young dogs due to estrogen action. The objective with this study, report the case of a bitch, involving both diseases. The treatment of choice made was one ovariosalpingohistectomia (OSH) and the patient recovered well. It was concluded that reproductive emergencies require proper diagnosis and early treatment possible to avoid further damage to health in the animal. The OSH proved to be effective and curative in these pathologies. Keywords: Cyclo-estrus, estrogen, ovariosalpingohisterectomy, infectionPiómetra e hiperplasia vaginal en perra: Reporte de un caso RESUMEN. En la rutina del médico veterinario en perros y gatos frecuentemente se presentan enfermedades que afectan el sistema reproductivo de éstos animales, acometiendo en gran parte a las hembras, pudiendo traer consecuencias serias como la infertilidad. Entre las patologías reproductivas, se pueden con gran casuística a piómetra (hiperplasia endometrial cística) y menos comúnmente la hiperplasia vaginal. El piómetra tiende a ocurrir frecuentemente en perras de edad media o animales de edad avanzada. Ya

Background: Doppler ultrasonography enables the investigation of vascular blood flow indexes in gestational assessment, being able to detect vascular resistances that can affect fetal and maternal circulation, such as cases of placental insufficiency, associated with fetal cerebral oxygenation deficit and fetal distress. The study aims to assume hemodynamically normal values in the final third of gestation in bitches, of the umbilical, uteroplacental, middle cerebral and internal carotid arteries, correlating the obtained Doppler velocimetric indexes, for the assessment of the feto-placental circulation, and prediction of fetal viability indexes, fetal centralization and probable date of delivery.Materials, Methods & Results: Thirty healthy bitches were examined in the final third of gestation (40-60 days). These were evaluated by Doppler ultrasonography at 2 times (T): T1: between 40-50 days; T2: between 51-60 of gestation. At each time point, the peak systolic velocities (PSV) and end-diastolic velocities (EDV) used to obtain the pulsatility (IP) and resistivity (IR) indexes of the umbilical, uteroplacental, middle cerebral and internal carotid arteries of fetuses were evaluated. Also, the systole/diastole (S/D) ratio of these vessels was evaluated. The data obtained were subjected to analysis of variance and Tukey test, using a P value equal to 5%. A significant difference was observed between velocities and Doppler velocimetric indexes between the 2 phases of the gestational final third in all studied vessels. There was an increase in the values of PSV and EDV and a decrease in the indexes, as the probable date of delivery approached. The analysis of the umbilical cord IR showed an increase from P1 to P2 (P < 0.05), while the IP decreased at the same time. For all studied variables there was a statistically significant difference (P < 0.05). In the uteroplacental artery, similarly to the umbilical artery, the PSV and EDV values showed an increase between P1 and P2, while the S/D ratio decreased up to 60 days of gestation (P2). The IR and IP of these vessels decreased during the study interval in pregnant bitches. The studied variables showed a statistically significant difference when analyzed comparatively between P1 and P2 (P < 0.05). As for the middle cerebral artery and internal carotid artery, the PSV and EDV values increased until the end of pregnancy. Likewise, the Doppler velocimetric values and the S/D ratio decreased until the end of pregnancy (P2).Discussion: The hemodynamic values obtained for the umbilical artery and uterine artery were significantly different between 40 and 50 days of gestation (P1) and 50 and 60 days of gestation (P2), with a decrease in vascular resistance and an increase in velocities. It can be related to a greater association of maternal-fetal blood perfusion, due to the increased demand for the development of the fetus. The Middle Cerebral Artery (MCA) also showed changes between P1 and P2, with an increase in PSV and EDV in the final third of pregnancy, and the S/D ratio was reduced, differing significantly between P1 and P2. The systolic (PSV) and diastolic (EDV) flow velocities of the internal carotid artery increased progressively, while the IR, IP and the S/D ratio decreased, between the evaluated periods (P1 and P2), providing greater flow in canine fetuses, maintaining normal heart rate, indicating positive fetal viability. Keywords: Doppler, gestational ultrasound, bitches, fetal circulation, umbilical artery, internal carotid, fetal middle cerebral artery.

RESUMO.A maceração fetal ocorre mais em espécie felina do que em caninos, caracterizada pela utilização de contraceptivos de forma irregular, ocasionando alterações degenerativas desintegradoras do feto. O diagnóstico baseia-se na avaliação clínica junto à anamnese, mais ultrassonografia sendo estritamente necessária este último para melhor diagnóstico. O tratamento realizado foi ovário-salpinge-histerectomia. No presente trabalho relatou-se ruptura do útero com presença de ossos na cavidade abdominal e tecidos friáveis. Diagnosticou-se como maceração fetal após a abertura da cavidade abdominal. A paciente veio a óbito no mesmo dia, horas após a cirurgia, solicitando necropsia. Palavras chave: Contraceptivos, gata, maceração fetal Fetal maceration in cats:ABSTRACT. The fetal maceration occurs more in feline species than in canine, characterized by the use of contraceptives erratically, causing disruptive degenerative changes of the fetus. The diagnosis is based on clinical evaluation by the anamnesis, more ultrasound is strictly required the latter to better diagnosis. The treatment was ovary-salpinge-hysterectomy. In this study it was reported rupture of the uterus with the presence of bones in the abdominal cavity and friable tissues. It was diagnosed as fetal maceration after opening of the abdominal cavity. The patient came to death on the same day, hours after surgery, requesting necropsy.