Atlas of livestock parasites
digitized collection of microscopical preparations

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Platynosomum concinnum (dog, cat)



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Distribution: Southeastern United States, South America, West Africa. Other flukes  that may be found in the bile or pancreatic ducts in North America include Eurytrema procyonis and Fasciola hepatica

Host: Gall bladder and bile ducts of cats.            

Life Cycle: Adult worms produce eggs that are passed in the feces of cats. The life cycle is complex, involving snail, crustacean, and amphibian or reptile intermediate hosts. Cats are infected following ingestion of lizards or amphibians containing larvae.          

Diagnosis: A sedimentation procedure is most effective for recovering the relatively small, operculate eggs of Platynosomum.              

Size: 34–50 × 20–35 µm               

Clinical features: Light infections are asymptomatic. Heavily infected cats may show signs of weight loss and hepatomegaly.


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