Introduction to Diagnostic Medical Parasitology
Opisthorchis viverrini
Egg
![](/.imaging/mte/default-theme/parasiteImage/dam/exercises/Exercises-for-helminth-eggs/opisthorchis-viv.jpg/jcr:content/opisthorchis%20viv.jpg)
![](/.imaging/mte/default-theme/parasiteImage/dam/parasites/helminths/trematodes/liver-lung-trematodes/Opisthorchis-viverrini/ov-cartoon.png1/jcr:content/ov%20cartoon.png)
Egg very similar to Clonorchis sinensis; light brown-yellow; operculated with distinct shoulders; fully embryonated; sometimes little knob at aboperculate end
Size: 30 x 11 μm
A Shell
B Operculum
C 'Shoulder'
D Miracidium
E Knob