Cysticercus

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Related to cysticerci: Neurocysticercosis

cysticercus

[¦sis·tə′sər·kəs]
(invertebrate zoology)
A larva of tapeworms in the order Cyclophyllidea that has a bladder with a single invaginated scolex.

Cysticercus

 

a larval stage of tapeworms. The cysticercus resembles a cyst whose wall is retracted in one place to form the head; the head has suckers and sometimes hooks. The cysticercus develops from an oncosphere in any organ (frequently in muscles, brain, and eye) of its intermediate host, such as swine and cattle. After entering its definitive host, for example, a human being, the cysticercus protrudes from the cyst and the larva is transformed into an adult worm.

The cysticercus is characteristic of most tapeworms, the pork and beef tapeworms in particular.

References in periodicals archive ?
Seroprevalence of antibodies against Taenia solium cysticerci among refugees resettled in United States.
Identifiable cysticerci are round to oval, contain semitranslucent to whitish fluid, and usually measure 1 to 2 cm.
1) Cysticerci, the larvae of Taenia solium, also known as bladder worms, can form cysts as large as 1 to 2 cm in muscle and manifest as palpable nodules mimicking neoplasms.
Damage depends on the site and number of cysticerci that develop.
1,2) Presentation depends on several factors such as host response, stage of evolution, and number, size and location of cysticerci.
Attentions should be also paid to that the diagnosis methods, such as ELISA, EITB, tongue inspection, may all show lower sensitivity in rural pigs infected naturally with few cysticerci than such ones experimentally infected with T solium.
Albendazole therapy for giant subarachnoid cysticerci.
The use of contaminated water for irrigation of vegetables, consumption of pork infested with cysticerci, and direct personal contact with T.
The size of mature cysticerci can range from 5 mm to 20 cm (almost 8 in.
To study strain variation in Toenia solium, we have isolated DNA from individual cysticerci, the larval form, and sequenced a 444 bp portion of the mitochondrial gene, cytochrome oxidase I (COI), and a 400 bp portion of the internal transcribed spacer (ITS) of the nuclear rRNA.
The classic intestinal infection with Taenia solium results when humans ingest pork with viable cysticerci that exocyst in the small intestine.
When intermediate hosts ingest eggs, cysticerci develop in the pleural and peritoneal cavities.