3 resultados para Demodicose


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Cases of bovine demodicosis caused by Demodex bovis were reported in a Sindhi herd from December 1989 to January 1992. Both localized and generalized forms were diagnosed. This is the first report of the generalized form in Brazil. In the first two years, demodicosis was diagnosed only in cattle < 2 years old, whereas animals of all ages were positive in the last two years. Prevalence varied from 20.4% (11/54) to 53.1% (26/49) and 13.2% (12/91) to 14.8% (9/61) for cattle < 2 years old and > 2 years old, respectively. Clinical signs varied from a few small nodules to a thickened skin with soft large nodules in the localized and generalized forms, respectively. Main microscopic features of the nodules in the generalized form consisted of acanthosis with hyperqueratosis, chronic sebaceous adenitis, subcutaneous muscular necrosis, focal cellular degeneration of the epidermis basal layer and presence of large number of mites inside the lumen of dilated hair follicles. In addition, a chronic perifoliculitis was observed, characterized by lymphoplasmocytic infiltrate which also contained macrophages and neutrophils. It is suggested that poor nutrition and stress due to prolonged drought probably contributed to the increase of susceptibility of the herd to mite infestation.

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Pós-graduação em Medicina Veterinária - FMVZ

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O presente relatório descreve as atividades desenvolvidas no âmbito do estágio curricular que decorreu no Hospital Veterinário de Leiria, com a duração de seis meses e sob a orientação do Dr Ricardo Alves. Este encontra-se dividido em duas partes, referindo-se a primeira à casuística acompanhada ao longo do estágio, em que a área com maior representatividade é a clínica médica e a segunda parte consiste numa revisão bibliográfica referente ao tema “ Demodicose canina”. Finalmente segue-se a apresentação de casos clínicos acompanhados no âmbito do tema referido. A demodicose é uma patologia dermatológica causada pela proliferação anormal do ácaro Demodex spp nos folículos pilosos associada a uma desregulação do sistema imunitário. Esta patologia pode manifestar-se de forma localizada ou generalizada e ocorrer tanto em jovens como adultos, sendo mais frequente nos jovens e nos adultos é geralmente associada á existência simultânea de doença imunossupressora; Abstract: Clinic of company animal and large animals This report describes the internship that took place at the Hospital Veterinário de Leiria for a period of six months, under the guidance of Dr. Ricardo Alves. This report is divided in two sections, the first one refers to the followed clinical cases during the practice internship,in which the most representative area is the medical clinic, and the second part consist of a literature review on the “Canine Demodicosis”, finally followed by presentation of clinical cases followed under that theme. The demodicosis is a skin disease caused by the abnormal proliferation of Demodex spp mite in hair follicles associated with a dysregulation of the immune system. This disorder can manifest it self in localized or generalized forms and occurs in both young and adults, being more frequent in young pets and adults is usually associated simultaneous with other forms of immunosuppressive disease