Pancreatite intersticial crônica em bovino causada por Eurytrema coelomaticum

Abstract

Descrevem-se os achados clínicos e patológicos atribuídos à infecção maciça por trematódeos pancreáticos do gênero Eurytrema (Loos, 1907) em uma novilha da raça Jersey, procedente do município de Seara, região oeste do estado de Santa Catarina, Brasil. O animal de dois anos de idade apresentava desenvolvimento insuficiente, emagrecimento crônico, caquexia, decúbito prolongado e anemia, sendo submetido à eutanásia in extremis. Na necropsia observou-se aumento de volume do pâncreas, que estava esbranquiçado, crepitante, com a superfície de corte irregular, onde foram visualizados inúmeros trematódeos emergindo ativamente do órgão. Histologicamente havia pancreatite intersticial crônica. O parasito foi identificado como Eurytrema coelomaticum (Giard & Billet, 1882). Trata-se do primeiro registro de euritrematose clínica em bovino no estado de Santa Catarina.

Eurytrema coelomaticum natural infection in small ruminants: a neglected condition

“…Despite clinical signs detected in some animals, most cases in our study and small ruminants with PE in Asia (Tang and Tang, 1977; Dorny et al ., 1996; Sangvaranond et al ., 2010; Ma et al ., 2014) were asymptomatic. Although similar clinical signs were observed in more severe infections, most PE cases in cattle were equally subclinical (Ilha et al ., 2005; Bassani et al ., 2006; Quevedo et al ., 2013).…”

“…In contrast to the most frequent asymptomatic infections, severe chronic parasitic pancreatitis and death related to Eurytrema infection, as observed herein, was reported in the natural and experimental PE in goats and sheep (Kono et al ., 1980; Tang and Lin, 1980; Mahato, 1987; Graydon et al ., 1992). Marked pancreatic fibrosis, pallor, atrophy and intraductal trematodes were pathological changes detected in cattle in Brazil with severe E. coelomaticum infections (Ilha et al ., 2005; Rachid et al ., 2011; Quevedo et al ., 2013; Schwertz et al ., 2016 b ). Gross findings varied from a fibrotic, shrunken and smaller pancreas to an enlarged, dark and heavy parasitized organ, even without morphological changes in cattle infected with E. coelomaticum (Ilha et al ., 2005).…”

“…Experimental and natural Eurytrema sp. infection of small ruminants in Asia showed similar pathological findings (Kono et al ., 1980; Graydon et al ., 1992) and also in varying degrees in cattle infected with E. coelomaticum in Brazil (Ilha et al ., 2005; Bassani et al ., 2006; Rachid et al ., 2011; Quevedo et al ., 2013; Schwertz et al ., 2016 a ).…”

“…Although E. coelomaticum has been identified as the agent responsible for PE in cattle in Southern Brazil (Ilha et al ., 2005; Bassani et al ., 2006; Rachid et al ., 2011; Quevedo et al ., 2013; Schwertz et al ., 2016 a ), the situation of natural infections in small ruminants is still undefined or under-reported in the Americas. In our necropsy records, some cases of E. coelomaticum infection in cattle were also observed in the Federal District.…”

Digital image analysis to estimate the minimum number of Eurytrema coelomaticum eggs in the uterus of adult specimens

“…The digenetic trematode Eurytrema coelomaticum (Giard and Billet, 1892) Looss, 1907 is parasite of pancreatic ducts of ruminants and are endemic in several regions of the world, including countries of South America, Europe and Asia (Sakamoto et al, 1981; Ilha et al, 2005; Sakamoto and Oikawa, 2007; Quevedo et al, 2013). In Brazil, this helminth is widely distributed and commonly found in slaughterhouses in several states (Azevedo et al, 2004; Bassani et al, 2006) The life cycle is heteroxenic, requiring two intermediate hosts and another definitive.…”