Year: 2026
Type: article
Study design: Case Report
Abstract: Paragonimus is the only genus in the family Troglotrematidae. Dogs, cats and other mammals may become infected by consuming crabs or shrimp harbouring metacercariae. A 1.11‐year‐old cat was presented with chronic coughing episodes. Thoracic radiography and ultrasonography suggested diffuse pneumonia. Cytology from a pulmonary granuloma and faecal examination revealed numerous trematode eggs (50–100 µm) consistent with Paragonimus spp. Molecular analysis of faecal DNA confirmed 100% nucleotide identity with Paragonimus mexicanus metacercariae previously reported from freshwater crabs in Puntarenas, Costa Rica. Antiparasitic therapy combining praziquantel, pyrantel and mebendazole resolved clinical signs. This case highlights the importance of including paragonimiasis in the differential diagnosis of cats with chronic respiratory disease in Central America, where aquatic intermediate hosts and wild reservoirs are abundant, even in peri‐urban settings.
Source: Veterinary Record Case Reports
DOI: 10.1002/vrc2.70333
Institutions: Universidad Nacional, Universidad Técnica Nacional
Language: English
Subfield: Pathology and Forensic Medicine
Field: Medicine
Domain: Health Sciences
Open Access status: bronze
OpenAlex ID: W7118630996