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Related Concept Videos

Amebiasis01:28

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...
Toxoplasmosis01:28

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...
Leishmaniasis01:30

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...
Symbiosis00:58

Symbiosis

Symbiotic relationships are long-term, close interactions between individuals of different species that affect the distribution and abundance of those species. When a relationship is beneficial to both species, this is called mutualism. When the relationship is beneficial to one species but neither beneficial nor harmful to the other species, this is called commensalism. When one organism is harmed to benefit another, the relationship is known as parasitism. These types of relationships often...
Giardiasis01:12

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...
Malaria01:29

Malaria

Malaria pathogenesis in humans reflects a delicate interplay between parasite biology and host response. Clinical illness reflects a host’s immune response to the parasite’s asexual replication cycle, which is often asymptomatic in individuals with partial immunity. From the parasite's perspective, transmission between mosquito and human with minimal host pathology is evolutionarily advantageous. Among the six Plasmodium species infecting humans, P. falciparum and P. vivax dominate in global...

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Updated: May 31, 2026

Transient Transduction of the Strobilated Forms of Echinococcus granulosus
13:25

Transient Transduction of the Strobilated Forms of Echinococcus granulosus

Published on: September 16, 2022

Primary splenic hydatidosis.

Ajaz A Malik1, Shams ul Bari, M Younis

  • 1Department of Surgery, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, India.

Indian Journal of Gastroenterology : Official Journal of the Indian Society of Gastroenterology
|July 12, 2011
PubMed
Summary
This summary is machine-generated.

Primary splenic hydatid cysts are rare, representing a small fraction of all hydatid cysts. This case series highlights their presentation and diagnosis in adult patients, emphasizing the need for consideration in splenic cystic lesions.

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Last Updated: May 31, 2026

Transient Transduction of the Strobilated Forms of Echinococcus granulosus
13:25

Transient Transduction of the Strobilated Forms of Echinococcus granulosus

Published on: September 16, 2022

Area of Science:

  • Medicine
  • Parasitology
  • Radiology

Background:

  • Primary extrahepatic hydatid cysts are uncommon, with primary splenic hydatid cysts being exceptionally rare, accounting for only 2% to 3.5% of all hydatid cysts.
  • Hydatid disease, caused by Echinococcus granulosus, typically affects the liver and lungs, making splenic involvement infrequent.

Purpose of the Study:

  • To report a case series of isolated primary splenic hydatid cysts.
  • To analyze the clinical presentation, diagnostic methods, and outcomes of patients with splenic hydatid cysts.

Main Methods:

  • Retrospective analysis of 382 adult patients with abdominal hydatid cysts.
  • Inclusion criteria: patients with primary splenic hydatid cysts.
  • Diagnostic tools included ultrasonography, contrast-enhanced computed tomography, and enzyme-linked immunosorbent assay (ELISA) for hydatid antibodies.

Main Results:

  • Eight patients (2% of the cohort) were identified with primary splenic hydatid cysts (age range: 23–45 years; 5 women, 3 men).
  • Common symptoms included left hypochondrium pain (7 patients) and splenomegaly (4 patients).
  • All patients tested positive for hydatid antibodies via ELISA; one patient presented with hemoperitoneum.

Conclusions:

  • Primary splenic hydatid cyst is a rare clinical entity.
  • It should be included in the differential diagnosis for cystic splenic lesions, especially in endemic areas.
  • Splenectomy remains the primary treatment modality for symptomatic splenic hydatid cysts.