Dirofilaria immitis is a heart and large vessel parasite that mainly affects domestic dogs and has shown a re-emerging zoonosis in recent years. The objective of this study was to determine the prevalence, associated factors, and geographic areas of D. immitis in dogs in the city of Sousa, Paraíba, Northeast Brazil. A total of 320 dogs were selected and evaluated, 160 domiciled and 160 wandering, from the 32 districts of the city. Clinical examination, blood collection, and epidemiological data retrieval were performed for each animal. The sanitation conditions of the environment were visually observed at the time of evaluation. Three methods were used to investigate the morphometric diagnosis of microfilariae: capillary blood smear (ESC), peripheral blood smear (ESP), and modified Knott test. The data were subjected to univariate and multivariate statistics for the observation of risk factors and qualitative assessment of the examinations. Of the 17.5% (56/320) of animals testing positive for D. immitis, 25% (40/160) were wandering and 10% (16/160) were domiciled dogs. Positive dogs were found in 24 of the 32 neighborhoods evaluated, with Angelim and Doutor Zezé having the highest percentages of 1.56% (5/320) each. Only the categories of cardiac alterations (OR 6.231 [1,539-25,236]) and stray dogs (OR 2.463 [1,281-4,735]) demonstrated potential risk factors for infection. Of the 56 positive animals, 28 were positive in the three tests, and another 28 showed variance between methods and/or between prepared slides. No other filaridae were observed. The city of Sousa is considered to have a significant prevalence of infection by D. immitis, and forms of control and prophylaxis are required to reduce the risks of transmission to animals, as well as to humans.
<span style="line-height: 115%; font-family: 'Times New Roman',serif; font-size: 11pt; mso-fareast-font-family: Calibri; mso-ansi-language: PT-BR; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">Descreve-se um caso de carcinoma em tumor misto em uma cadela de sete anos de idade atendida no HV-ASA do IFPB, com histórico de crescimento de um nódulo há mais de nove meses. No exame clínico notou-se apatia, escore corporal ruim, aumento de linfonodos e massa de aproximadamente 25x17x10 cm de extensão em mama torácica esquerda, de consistência firme, ulcerada e drenando conteúdo piosanguinolento. Foi então realizado processo cirúrgico de nodulectomia e encaminhamento para biópsia e avaliação histopatológica. Macroscopicamente observou-se massas multilobuladas, encapsuladas, de coloração amarelada a amarronzada com presença de cavitações. Microscopicamente notou-se projeções papilares em meio a estroma fibrovascular e porção mesenquimal composta por tecido ósseo, caracterizando carcinoma em tumor misto.</span>
Relata-se um caso de um cão com enterite granulomatosa, proveniente da zona rural de São João do Rio do Peixe, que possuía o hábito de nadar em açude. Foi atendido na CMPA do HVASA-IFPB, campus Sousa, apresentando emagrecimento progressivo, hematoquezia e presença de massa em região hipogástrica. Na laparotomia exploratória, constatou-se espessamento de alças intestinais e aumento de linfonodos mesentéricos, sendo coletado fragmento de colón descendente através de biópsia incisional. Microscopicamente foram observadas imagens negativas de estruturas tubuliformes em áreas de necrose e de infiltrado inflamatório neutrofílico e histiocítico.<em> </em>No exame imuno-histoquímico não houve marcação positiva para o <em>Pythium insidiosum</em>. Com base nos achados clínicos, epidemiológicos e patológicos realizou-se o diagnóstico de enterite granulomatosa.
The objective of this study is to describe the clinical, epidemiological and anatomopathological aspects of a case of nasal rhinosporidiosis in a horse in the Northeast of Brazil. A 15-year-old female horse of mixed breed presented a nodule in the mucosa of the right nasal septum. Surgical excision was performed and sent for histopathological examination. Macroscopically, the nodule had an irregular and reddish surface, and when cut it was soft, whitish, and polypoid in shape. Microscopically, myriads of sporangia with endospores inside were observed in the lamina propria, morphologically similar to Rhinosporidium seeberi in various stages of maturation. The structures were also evidenced and marked by periodic acid Schiff (PAS), Grocott methenamine silver (GMS) and toluidine blue. The diagnosis of rhinosporidiosis was made based on macroscopic aspects and confirmed through histopathological examination. The presence of myriads of sporangia measuring 115 to 220 µm, containing endospores in its interior allowed the diagnosis. Although rhinosporidiosis is considered rare in Brazil, in the Northeast region there are descriptions of the disease in humans, suggesting that the disease in animals occurs and has possibly not been diagnosed. Therefore, it is important to include it as a differential diagnosis of diseases that affect the nasal cavity of horses in the region and that present similar lesions.
<p><span style="font-size: medium;">Descreve-se um caso de polioencefalomalacia em um bovino que apresentava há 6 dias protusão da língua com diminuição de tônus muscular, trismo mandibular, bruxismo e pouca sensibilidade ao teste de panículo, sem resposta terapêutica. Optou-se pela eutanásia. Na necropsia observou-se área focal amarelada e friável no hemisfério cerebral direito e perca da arquitetura do hemisfério cerebral esquerdo. Microscopicamente havia meningoencefalite não supurativa e polioencefalomalacia associados a corpúsculos de inclusão intranucleares em astrócitos, sugestivos de infecção por Herpesvirus Bovino tipo 5, na substância cinzenta do córtex frontal e parietal esquerdo. Polioencefalomalacia associada à infecção viral por BHV-5 ocorre no Semiárido da Paraíba, entretanto, a falta de diagnóstico tem contribuído para que a enfermidade seja pouco relata. </span></p>
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