What is the most common clinical presentation of Platynosomum concinnum in cats?

Platynosomum concinnum, commonly known as the cat liver fluke, often presents primarily as asymptomatic in infected cats. Many cats that are infected with this parasitic flatworm may not show overt clinical signs, particularly in the early stages of infection or in cases of low parasitic loads. This means that a significant number of cats could harbor the parasites without exhibiting any symptoms, making the asymptomatic state the most common clinical presentation.

Symptoms may occur in more severe cases or when there is a high parasite burden, but these instances are less common. Other options, such as fever, vomiting and diarrhea, and progressive lethargy, can occur with other gastrointestinal or systemic diseases in cats but are not characteristic of infections with Platynosomum concinnum. The lack of immediate or overt clinical signs underscores the importance of routine veterinary care and fecal examinations to identify this and other parasitic infections even in seemingly healthy cats.