Oriental Liver Flukes

Question 1

What are the species of oriental liver flukes and where are they found?

Answer 1

Clonorchis- china/Korea

Opistorchis- SE Asia and USSR

Question 2

How do you get oriental liver flukes?

Answer 2

Raw fish/crustaceans eaten that are infested with metacercariae

Question 3

Where do oriental liver flukes live and how do they get there?

Answer 3

In the bile duct, via the ampulla of vater

Question 4

How can you differentiate between opistorchis and clonorchis?

Answer 4

Opistorchis testes are globular

Question 5

How do you diagnose oriental liver flukes?

Answer 5

Eggs in stool
Eosinophilia
Serology
ERCP

Question 6

What do oriental liver flukes eggs look like?

Answer 6

Small knob
Shoulders
Visible miracidium in opi

Question 7

What are the symptoms of oriental liver flukes?

Answer 7

Biliary colic
Cholangitis
Pancreatitis

Cholangiocarcinoma in opistorchis viverrini

Question 8

How do you treat oriental liver flukes?

Answer 8

Praziquantel

Question 9

What are the animal reservoirs in oriental liver flukes?

Answer 9

Cats and dogs

Question 10

How do you prevent oriental liver flukes?

Answer 10

In endemic countries Tx all suspected cases
In communities with high prevalence Tx all annually with single dose praziquantel
WASH
Food safety inspections