Which of the following parasite's life cycle is shown below?
Fasciol abuski
Fasciola hepatica
Paragonimus westermani
Clonorchissinensis
Ans. (b) Fasciola hepatica Snail as intermediate host suggest f. hepatica. Fasciola hepatica Sheep lines fluke, its a large leaf shaped feshy hermaphrodite fluke. Parasite resides in liver and biliary passages of the definitive host Life cycle: Definitive host: Man, Sheep Intermediate host: Snail of genus lymnaea Aquatic plants Life cycle from page 152 Pankier 7/e, p 149 Mode of infection: Ingestion of metacercariae Pathogenesis: In comparison to clonorchis fasciola produce more hepatic damage, cause parenchymal injury and patient present with fever tender hepatomegaly. In chronic phase biliary obstruction and cirrhosis develops. Treatment: Triclabendazole is the treatment of choice.