14 research outputs found

    Adenoma hipofisário em bovino

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    The author in this paper studies a case of a cromophobe adenoma of the Hypophisis in bovine. He comments about the rarity of these tumours not only in human but also in Veterinary medicine, and its consequences. He also studies the macroscopic and microscopic aspects and considers that this tumour is probably the first ever found in Brazilian literature.O artigo apresenta resumo em inglês

    Monstros anidianos em bovinos

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    The authors studied two cases of anidian monsters eliminated after calving of two females of Holstein Frisian breed variety black and white. By gross examination, the monsters were characterized by ovoid structure, covered with skin and hair weighing 970 and 320 grammes. They verified also that both of the structure were made by connective tissue rich in vessels and fat tissue as well. Histological sections were carried out in order to study the different tissue found. The authors believe after looking over the literature that these monsters were the first cases found in the veterinary literature in Brazil.Os autores estudaram dois casos de monstros anidianos expulsos após parto normal de duas fêmeas da raça holandesa, variedade preta e branca. Macroscopicamente, êsses monstros eram caracterizados por formações ovóides, recobertas de pele e pêlos, pesando 970 e 320 gramas. Verificaram, ainda, que ambas as formações eram constituídas de tecido conjuntivo, rico em vasos, e de tecido adiposo. Cortes histológicos foram, igualmente, executados para estudar a natureza dos tecidos1 encontrados. Face à pesquisa bibliográfica compulsada, adiantam, ainda, serem os primeiros casos descritos na literatura veterinária no Brasil

    Sertoli cells tumors in dogs

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    No presente trabalho são descritos dois tumores de células de Sertoli, em cães, com características morfológicas; um de tumor benigno e outro de maligno. Por esta razão foram denominados, respectivamente, adenoma e adenocarcinoma de células de Sertoli. Os casos descritos parecem constituir os primeiros na literatura veterinária nacional. Em nenhum dos casos havia sintomatologia de hiperestrinismo, o que sugere não ser a mesma de observação constante. Finalmente, discutiu-se estatisticamente o problema, da incidência dêstes tumores, em nosso meio.Two Sertoli cell tumours in dogs are described, one benigns, the other malignant. They were therefore diagnosed as Sertoli cell adenoma and adenocarcinoma respectively. These cases appear to be the first ones reported in the brazilian veterinary literature. Both tumours failed to produce hyperestrinism, thus suggesting that this be not a constant symptom. Finally the incidence of these neoplasms is statistically discussed

    Lesões aórticas produzidas por Spirocerca lupi (Rudolphy, 1809) Nematoda, Spiruroidea, em cães

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    75 cases of aortic lesions caused by S. lupi are analized as found in 1661 post mortem of dogs. The gross and microscopic aspect are described and frequency of this parasitosis in São Paulo as well as the biological cycle in the dog and its relation to the lesions observed is discussed. Based on their findings the authors conclude as follows: 1) The incidence of S. lupi in São Paulo is 4.5%. 2) The parasite was found to systematically cause arterial and aesophagic lesions in this town. 3) There is, usually, an aneurisma sacciformis as consequence of a previous inflammatory process in the aorta thoracica. 4) The mesarteric layer is particularly damaged by this process, and there the normal tissue is replaced by connective tissue which is then hyalinized. The fibroid layer is usually hyperplastic. 5) In those cases where ossification of the arterial wall is observed, this process is always found to be membranous.Os autores estudaram, no presente trabalho, 75 casos de lesões aórticas provocadas por S. lupi, obtidos em 1661 necroscopias de cães. Descrevem macro e microscopicamente as lesões, discutindo a freqüência da parasitose em São Paulo e o ciclo evolutivo do parasita no hospedeiro definitivo em face das lesões observadas. Baseados nas observações, concluem: 1) A freqüência do S. lupi em São, Paulo é de 4,5%. 2) O parasita determina sistemàticamente lesões arteriais e esofágicas, em nosso meio. 3) As lesões na aorta torácica são inicialmente de caráter inflamatório e posteriormente, como seqüela, aparece um aneurisma sacciforme. 4) O processo atinge particularmente a mesartéria, onde o tecido normal é substituído por tecido conjuntivo que se hialiniza. Há também hiperplasia da camada fibróide. 5) Nos casos onde se verifica ossificação da parede arterial, o processo é do tipo membranoso

    Hepatic capilariasis in a dog

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    Spontaneous occurance of “hepatic capilariasis” in a dog is presented by the A.A. The lesions were submitted to macro and microscopic studies and the direct examination of oviform structures could be characterized as eggs of Capillaria hepatica (Bancroft, 1893) Travassos, 1915 — Capillariidae — Trichuroidea. After a throughbly bibliographic search, the A.A. concluded that this is the firest time a case of dog’s “hepatic capilariasis” is described in the State of São Paulo.O artigo apresenta resumo em inglês

    Histological and histochemical study of the lesions induced by Trichuris vulpis (Froelich, 1789) in the caecum of dogs

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    The macroscopic and microscopic lesions produced by Trichuris vulpis in the caecum of dogs were studied. The macroscopic alterations were described as large “thickening” of the caecum walls and the presence of petechiae and suffusion. In the caecal lumen, the number of parasites found was large as well as the encreased production of mucus. The histological examen in the infected caeca showed that the parasite do not produce deep alterations in the caecal wall. These alterations were characterized by edema in the submucosa and celular infiltrate linpho-plasmocitary prevalent. In the mucosa superfice the number of parasites was large as well as the quantity of muco present; the lymphoid folicules showed a marked hyperplasia. Using histochemical methods, it was verified the secreted muco presented the same characteristics as that produced by the caliciform normal cells.Estudou-se as lesões macroscópicas e microscópicas produzidas por Trichuris vulpis no ceco de cães. As alterações macroscópicas se caracterizaram por grande espessamento da parede de ceco e presença de pctequias e sufusões. No lúmen cecal era grande o número de parasitas, bem como foi evidenciada acentuada produção de muco. O exame histológico dos cecos infestados demonstrou que os parasitas não produzem alterações profundas na parede cecal. As alterações eram caracterizadas por edema da submucosa e por infiltrado celular prevalentemente linfo-plasmocitário. Na superfície da mucosa era grande a quantidade de muco e de parasitas e os folículos linfoides demonstraram acentuada hiperplasia. Através de métodos histoquímicos foi verificado que o muco secretado apresentava as mesmas características do muco produzido pelas células caliciformes normais

    Meduloepitelioma da adrenal em cão

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    An adrenal tumour found in a dog has been identified as meduloepithelioma by its histological characteristics. The tumour showed many infiltrations and was able to produce metastasis in the lung, kidney and heart. This is probably the first case of such tumor described in dogs.Estudamos tumor da adrenal em cão que, pelas suas características histológicas, foi classificado como meduloepitelioma. O blastoma se mostrou altamente infiltrativo, com capacidade de metástases à distância: no pulmão, no rim e no coração. Provavelmente o primeiro caso em cães

    Carcinoma vesical em cadela

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    A case of squamous cell carcinoma of the urinary bladder in the bitch, is reported in this paper. About two months ago, the animal showed signs of hematuria, taking during this time antibiotics drugs. The diagnosis of tumor was made mainly by the clinical findings showing the urine with some anormal cells; an “ irritative tipe” of the blood picture and a tumoral mass by the pneumocystography, into the urinary bladder wall. The radiological technique and the surgery as well as the histopathology were studied about this subject.O artigo apresenta resumo em inglês

    Disgerminomia do ovário em cadela

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    A bitch 10 years old presented an ovarian neoplasm. Through its characteristics the tumour was classified as a dysgerminoma. The histological study revealed high malignity, but no metastasis was noted but no conclusion were drawn because of the lack of clinical information.Estudamos neoplasia ovariana em cadela com 10 anos de idade. As características do tumor possibilitaram diagnóstico de disgerminoma. O estudo histológico revelou alta malignidade, não sendo, no entanto, observadas metástases. Comentamos a evolução do tumor, sem concluir sobre este aspecto do problema, pela falta de dados clínicos

    Níveis normais de colinesterase em equinos "Psi" valorização toxicológica

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    The normal levels of cholinesterase in thorough-bred horses are studied in this paper. Twenty-six mares were utilized, with ages varying from 2 to 20 years, and they were kept in very good clinical conditions. These animals were distributed in two groups, according to their ages: the first group from 2 to 10 years old, the second one, from 11 to 20 years. The statistical analysis of the results, by applying the “t” test, demonstraded that the data obtained are significant at a level of 2%.It was verified that in the animals under observation, the cholinesterase contents determined by the eletrometrical method of Michel keeps a distinct relationship between the two age groups. By the results obtained, one should consider that the animals are less susceptible to an intoxication by inhibitory agents of Cholinesterase than older animals, when submitted to the same amount of the toxical agent.Estudamos no presente trabalho os níveis normais de colinesterase em eqüinos PSI. Utilizamos animais do sexo feminino, com idades compreendidas de 2 a 20 anos, mantidos em ótimas condições clínicas, divididos em 2 grupos etários; o primeiro de 2 a 10 anos e o segundo de 11 a 20 anos. A análise estatística dos resultados, pela aplicação do teste “t” demonstrou que os dados obtidos são francamente significativos ao nível de 2%.Verificamos que nos animais submetidos a esta observação, o teor de colinesterase, determinado pelo método eletrométrico de Michel, guarda uma relação distinta entre os dois grupos etários. Pelos resultados obtidos, devemos considerar que os animais jovens são menos susceptíveis a intoxicação por agentes inibidores da colinesterase do que animais mais idosos, quando submetidos à mesma dose de agente tóxico
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