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Flashcards in trematode (flukes) Deck (14):
0

describe the general morphology of trematodes

two suckers; oral and ventral.
oral to feed, ventral for attachment

hermatophrodites except schistosome

1

chinese river flukes spp are...

Clonornorchis sinensis
Opistorchis viverini

2

reservoir host for chinese river flukes is

dog

second intermediate - cryprinid fish

3

What is the host for Clonorchis sinensis and Opistorchis viverini?

definitive host : human
reservoir host : dog
intermediate host : fish

4

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

5

symptoms of C.sinensis and O.viverinii

▫️jaundice ▫️hepatomegaly ▫️gastrointestinal ▫️tinggling and numbness in skin ▫️arrhythmia ▫️muscular weakness

6

diagnosis of C. sinensis and O.viverini

▫️fecal smear
▫️duodenal aspirate
▫️adult flukes recoverd at surgery

7

Name the host for Paragonimus westermani

definitive host: human, domesticated and wild animals

8

describe the morphology of Paragoniswestermanii

plump reddish brown oval worm, h like flaened coffee bean. approx. 1cm in size

9

describe the epidemiology of Paragonimus westernmani

▫️asia and Japan
▫️assoc. eat raw seafood
▫️MOT: ingest encysted metacercaiae in crustacean/crab meat

10

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

11

Paragonimus westermani also known as...

lung flukes

12

Fascioliasis normally infect...

livestock

13

Fasciola hepatica also known as...

sheep liver flukes