Flashcards in trematode (flukes) Deck (14):
describe the general morphology of trematodes
two suckers; oral and ventral.
oral to feed, ventral for attachment
hermatophrodites except schistosome
chinese river flukes spp are...
reservoir host for chinese river flukes is
second intermediate - cryprinid fish
What is the host for Clonorchis sinensis and Opistorchis viverini?
definitive host : human
reservoir host : dog
intermediate host : fish
describe the pathogenesis of conorchis Sinensis and opistorchis viverini
in heavy infection:
▫️adult worm resides in the cystic duct, biliary duct, pancreatic duct
▫️mechanically irritate epithelium
▫️hyperplasia and fibrosis of epithelium
▫️blockage of duct
▫️impare liver function and liver swells
symptoms of C.sinensis and O.viverinii
▫️jaundice ▫️hepatomegaly ▫️gastrointestinal ▫️tinggling and numbness in skin ▫️arrhythmia ▫️muscular weakness
diagnosis of C. sinensis and O.viverini
▫️adult flukes recoverd at surgery
Name the host for Paragonimus westermani
definitive host: human, domesticated and wild animals
describe the morphology of Paragoniswestermanii
plump reddish brown oval worm, h like flaened coffee bean. approx. 1cm in size
describe the epidemiology of Paragonimus westernmani
▫️asia and Japan
▫️assoc. eat raw seafood
▫️MOT: ingest encysted metacercaiae in crustacean/crab meat
describe the life cyle of Paragonimus westernmani
1. metacercaiae ingested 2. worms hatch in small i.
3. adults mature and move to lung
4. adult live as pair in lung cyst, sexual, egg produce
5. ehh in feces and sputum
Paragonimus westermani also known as...
Fascioliasis normally infect...