Related Experiment Video
Updated: Jul 3, 2026

13:21
Establishment of Larval Zebrafish as an Animal Model to Investigate Trypanosoma cruzi Motility In Vivo
Published on: September 30, 2017
Fascioliasis in pregnancy.
Adnan Alatoom1, Jeanne Sheffield, Rita M Gander
1Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390-9073, USA.
Obstetrics and Gynecology
|August 2, 2008
Summary
Fascioliasis, a liver fluke infection, is rare in the US but can mimic gallstones in pregnant patients. Early diagnosis and treatment with triclabendazole are crucial for favorable outcomes.
Area of Science:
- Parasitology
- Hepatology
- Obstetrics
Background:
- Fascioliasis is a neglected tropical disease caused by Fasciola liver flukes.
- Zoonotic transmission is common globally, but US cases are infrequent and linked to specific populations.
- Physician unfamiliarity may contribute to underdiagnosis in non-endemic regions.
Observation:
- A pregnant patient presented with symptoms suggestive of cholelithiasis (gallstones).
- Diagnostic procedures revealed infection with Fasciola hepatica, a liver fluke.
- The patient had a history of travel to endemic areas in Central Mexico.
Findings:
- Fascioliasis diagnosis in pregnancy can be challenging due to overlapping symptoms with common obstetric conditions.
- Endoscopic retrograde cholangiopancreatography identified the liver fluke in the bile duct.
- Treatment with triclabendazole resulted in successful clinical improvement.
Implications:
- Clinicians should consider fascioliasis in pregnant patients with biliary symptoms, especially those with relevant travel history.
- Awareness of fascioliasis is critical for timely diagnosis and management in high-risk populations.
- This case highlights the importance of considering parasitic infections in differential diagnoses during pregnancy.
Related Concept Videos
Toxoplasmosis
Toxoplasmosis, a zoonotic disease caused by the protozoan Toxoplasma gondii, poses significant public health challenges globally due to its high seroprevalence and varied clinical manifestations. As an obligate intracellular parasite, T. gondii can infect all warm-blooded vertebrates, but felids are its only definitive hosts, shedding unsporulated oocysts into the environment. Humans typically acquire the infection through ingestion of tissue cysts in undercooked meat or oocysts from...
American Trypanosomiasis
Chagas disease, or American trypanosomiasis, is a vector-borne parasitic infection caused by Trypanosoma cruzi, a flagellated protozoan (kinetoplastid) of the family Trypanosomatidae. The disease is endemic in Latin America, although cases are increasingly reported worldwide due to human migration. Transmission most commonly occurs when feces of infected triatomine bugs contaminate bite wounds or mucosal surfaces; additional routes include congenital, transfusional, transplant-related, and oral...
Leishmaniasis
Leishmaniasis is a protozoal disease caused by species of the genus Leishmania and transmitted through the bite of infected female sandflies. The parasite exists in two principal morphological forms during its life cycle. A sandfly acquires intracellular amastigotes from an infected reservoir host, such as a dog. Within the sandfly, these forms differentiate into motile, flagellated promastigotes. During a subsequent blood meal, promastigotes are injected into the human host, where they...
Giardiasis
Giardiasis is a globally prevalent intestinal infection caused by the protozoan parasite Giardia duodenalis (also known as G. lamblia or G. intestinalis). This flagellated protozoan is the most frequently identified intestinal parasite in the United States and worldwide. Transmission primarily occurs via the fecal-oral route, with infection arising from ingestion of water or food contaminated with cysts. Individuals in low-resource settings, international travelers, outdoor enthusiasts, daycare...
Amebiasis
Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...
Trichomoniasis
Trichomonas vaginalis is a flagellated protozoan parasite and the causative agent of trichomoniasis, one of the most prevalent non-viral sexually transmitted infections in the United States. This extracellular parasite primarily colonizes the lower genitourinary tract in women—particularly the vagina—and in men, the urethra and prostate. Its structural and functional adaptations enable its survival, motility, and pathogenicity within the host environment.Structural Features and Host EntryT.

