Liver Flukes: Opistorchis spp. Flashcards
Common name of Opisthorchis felineus
- Cat Liver fluke
- Siberian Liver Fluke
1st IH of Opisthorchis sinensis
Snail
Genus: Bithynia spp.
2nd IH of Ophisthorchis felineus
Freshwater fishes
Family: Cyprinidae and Cobitidae
What is the appearance of Opithorchis felineus in terms of its shape, color, operculum and shoulders? (same with Clonorchis sinensis)
- Shape: Ovoid
- Color: Yellowish brown
- Operculum: Convex
- Shoulders: Thickened rim
+ well-developed miracidium that has assymetrical feature inside the eggs
What is the appearnce of abopercular of opithorchis?
A. Thickened
B. Comma-shaped
A. Thickened
Opisthorchis spp. adult morphology
- Leaf-like in shape, trasparent tegument
- Sligtly shorter
- Vitelarria: found in middle third of the
body at level of uterus
Opisthorhics spp:
Where Vitellaria be found?
- In the middle third of the body at the level of the uterus
Clonorchis & Opithorchis egg Structure:
- Pitcher-like
- Old-fashioned light bulb
What Opisthorchis spp. is associated with Human infection?
a. O. felineus
b. O. viverrini
b. O. viverrini
What is the other O. spp. aside from O. felineus?
O. viverrini
Is O. spp. laid maturely or immaturely?
Maturely
Habitat of O. spp.
Bile ducts
Diagnostic stage of O. spp.
Embryonated eggs
Diagnsis of O. spp.
● Detection of egg in the stool
● Cholangiography, CT scan, X-ray
● ELISA, EIA, Coproovoscopy
● PCR
Treatment for O. spp.
Praziquantel
