High-frequency ultrasound imaging of the duodenum and colon in patients with symptomatic giardiasis in comparison to amebiasis and healthy subjects.

Aim: The application of ultrasound may be suitable for evaluating the effects of intestinal cytoskeletal rearrangement of the duodenum and colon as a result of exposure to live Giardia lamblia trophozoites. We studied the sonographic appearance of the duodenum and colon in giardiasis compared with amebiasis and healthy subjects.

Methods: Sonographic images obtained from 100 consecutive patients with symptomatic giardiasis were compared to those taken from 40 patients with amebiasis and 40 healthy subjects.