Family: OPISTORCHIDAE Flashcards
Characteristics of OPISTORCHIDAE:
- Anterior portion narrower than posterior
- Lanceolate shape
- Eggs are embryonated when laid
- Parasitic in the bile ducts, pancreatic ducts and the gall bladder
Genera of family OPISTORCHIDAE:
Opisthorchis/ Clonorchis
Metorchis
Euamphimerus luzonicus
“Chinese liver fluke” or “Oriental liver fluke”
Opisthorchis sinensis
Host of Opisthorchis sinensis?
Man
Site of Opisthorchis sinensis
Occurs in the gall bladder and bile duct, sometimes the pancreatic duct and duodenum
1st intermediate host of O. sinensis
Snail- Bulinus spp., Vivipara spp.
2nd I.H. of O. sinensis
Cyprinoid fish
Life cycle of O.sinensis
Egg
Snail
Cyprinoid fish
Man
Common lesion of O. sinensis
Catarrhal cholecystitis
Cholongitis and cholongiohepatitis
Seen in the pancreas of jungle fowl
Euamphimerus luzonicus
Host: civet cat and also domestic and wild cats
Site: liver of cat
Opisthorchis viverrini
Carcinogenic, often leading to cholangiocarcinoma and death
Opisthorchis viverrini
Primarily affects cats
Found in the bile ducts rarely in the intestine and pancreatic duct of dog, cat, fox, pig, and man.
Adult measures 7-12 mm long
Testes is lobed (roseate )
Opisthorchis tenuicollis/ fileneus
Opisthorchis that commonly seen in liver/ bile ducts of ducks
Opisthorchis obsequens
Opisthorchis that is common in moorhen
Opisthorchis philippinensis
