Introduction to Diagnostic Medical Parasitology
Giardia duodenalis (G. lamblia)
Cyst
![](/.imaging/mte/default-theme/parasiteImage/dam/diseases/giardiasis/diagnosis_0/jcr:content/diagnosis_0.jpg)
![](/.imaging/mte/default-theme/parasiteImage/dam/parasites/protozoa/intestinal-flagellates-and-ciliates/giardia-duodenalis--g-lamblia-/G.l.-cyst-Skizze.png/jcr:content/G.l.%20cyst-Skizze.png)
Cyst
Size: 8 - 10 x 12 - 14 μm
- Round or oval with a typical halo and a typical <disorder> inside.
Vegetative form
![](/.imaging/mte/default-theme/parasiteImage/dam/parasites/protozoa/intestinal-flagellates-and-ciliates/giardia-duodenalis--g-lamblia-/G.l.-veg-Skizze.png/jcr:content/G.l.%20veg-Skizze.png)
Vegetative form
Size: 14 - 20 x 7 - 10 μm
- Pear shaped
- Has two nuclei
- Visually like a face or little ghost.