Intestinal infection caused by the protozoan parasite Giardia lamblia:
G. lamblia is also called Giardia duodenalis and Giardia intestinalis.
Life cycle consists of cyst and trophozoit...
25–50% of infected persons are symptomatic.
Symptoms usually appear 1 to 2 weeks after exposure.
Persistent diarrhea, often >3 weeks (95%)
Abdominal cramps (70%)
Nausea (60%)
Bloating (...
No treatment required in asymptomatic patient...
Cañete R, Rodríguez P, Mesa L, et al. Albendazole versus metronidazole in the treatment of adult giardiasis: a randomized, double-blind, clinical trial. Curr Med Res Opin. 201...
58265007 Giardiasis (disorder)
10679007 Infection by Giardia lamblia
Daycare facilities and public swimming pools are common sources of Giardia transmission (a history of camping or recent travel is not required for the diagnosis).
Abdominal bloating and...
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<bold>FIGURE 53-3</bold> <bold>Scanning electron micrograph of <i>Giardia lamblia.</i> A.</bold> <i>G. lamblia</i> adhering to the gastrointestinal epithelium using its ventral sucking disk. Patients with giardiasis may have a significant reduction in the amount of absorptive surface available because of the large number of adhering parasites. <bold>B.</bold> On detaching from the intestinal epithelium, the organisms often leave a clear impression...
<bold>FIGURE 53-3</bold> <bold>Scanning electron micrograph of <i>Giardia lamblia.</i> A.</bold> <...
<bold>Fig GI 26-2 Giardiasis.</bold> Irregular fold thickening is most prominent in the proximal small bowel.