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Related Concept Videos

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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...
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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...
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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...
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Lysosomes are the site for the degradation of macromolecules and biological polymers released during membrane trafficking events such as secretory, endocytic, autophagic, and phagocytic pathways. The membrane-enclosed area of the lysosome, called the lumen, contains hydrolytic enzymes active in an acidic environment. These acid hydrolases are functional at a pH between 4.5 and 5 and are involved in cellular processes such as cell signaling, energy metabolism, restoration of the plasma membrane,...
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Related Experiment Video

Updated: Jun 21, 2026

Transient Transduction of the Strobilated Forms of Echinococcus granulosus
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Published on: September 16, 2022

Unexplainable development of a hydatid cyst.

Antonio Di Cataldo1, Rosalia Latino, Aldo Cocuzza

  • 1Department of Digestive and Colorectal Surgery, University of Catania, Catania, Italy. dicataldoa@tiscali.it

World Journal of Gastroenterology
|July 15, 2009
PubMed
Summary

This case report details a rare instance of recurrent echinococcosis (hydatidosis) in an elderly woman, presenting an unusual hourglass-shaped liver cyst extending through the abdominal wall. The unique growth pattern challenges typical understanding of hydatid cyst behavior.

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Transient Transduction of the Strobilated Forms of Echinococcus granulosus
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Published on: September 16, 2022

Isolation And Dendritic Cell-Uptake of Small Extracellular Vesicles from Echinococcus granulosus
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Isolation And Dendritic Cell-Uptake of Small Extracellular Vesicles from Echinococcus granulosus

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Generation and Quantitative Characterization of Functional and Polarized Biliary Epithelial Cysts
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Generation and Quantitative Characterization of Functional and Polarized Biliary Epithelial Cysts

Published on: May 16, 2020

Area of Science:

  • Medicine
  • Parasitology
  • Radiology

Background:

  • Echinococcosis is a parasitic cyclozoonosis causing cystic lesions, typically in the liver.
  • Recurrent hydatidosis can occur, but unusual growth patterns are rarely documented.

Observation:

  • A 77-year-old woman presented with recurrent hydatidosis involving a liver cyst.
  • The cyst exhibited an unusual hourglass-like growth pattern, extending from the liver, through the lateral right abdominal wall, and into the lumbar subcutaneous tissue.

Findings:

  • This represents a rare case of subcutaneous and abdominal wall extension of a hydatid cyst.
  • The observed growth pattern is atypical for hydatid cysts and lacks a clear pathogenetic explanation in existing literature.

Implications:

  • Highlights the importance of considering rare presentations of echinococcosis in clinical diagnosis.
  • Suggests the need for further research into the pathogenetic mechanisms of atypical hydatid cyst growth patterns.