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 ?
solium commonly forms cysticerci in tissues of various atypical intermediate hosts, including rabbits, camels, dogs, cats, and humans (2,4).
Distribution of Taenia Saginata Cysticerci in tissues of experimentally infected Cattle.
Deeply situated cysticerci are not evident unless presenting clinical symptoms".
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.
hydatigena is called cysticercosis because the larvae are called cysticerci in these species.
Usually both 'healthy' (active) and 'involuted' (inactive) cysticerci lack inflammatory response, which is restricted to 'currently degenerating' cysts whose ability to evade host defences is becoming faulty.
1 Whereas parenchymal cysticerci can be readily identified on CT and MRI, most authors agree that it is difficult to identify lesions within the cerebrospinal fluid (CSF) spaces.
Serodiagnosis of human cysticercosis using a chromatofocuse antigenic preparation of Taenia solium cysticerci in an enzymelinked immunosorbent assay.
In 1974, Herbert found that the immune system might participate in removal of cysticerci from the host.