Taenia solium

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Taenia

 [te´ne-ah]
a genus of tapeworm. See figure at tapeworm.
Taenia sagina´ta a species 4 to 8 meters long, found in the adult form in the human intestine and in the larval state in muscles and other tissues of cattle and other ruminants; human infection usually results from eating inadequately cooked beef.
Taenia so´lium a species 2 to 4 meters long, found in the adult intestine of humans; the larval form most often is found in muscle and other tissues of the pig. Human infection results from eating inadequately cooked pork.

Tae·ni·a so·'li·um

the pork, armed, or solitary tapeworm of humans, acquired by eating insufficiently cooked pork infected with Cysticercus cellulosae; hatching of ova within the human intestine may result in establishment of cysticerci in human tissues, resulting in cysticercosis.

Taenia solium

a species of tapeworm that most commonly inhabits the tissues of pigs during its larval stage and infects the intestine of humans in its adult form. Infrequently humans serve as the intermediate hosts for this tapeworm, and larval infestation of the muscle and brain tissue may occur. Also called pork tapeworm. See also cysticercosis, tapeworm, tapeworm infection.

Taenia solium

Armed tapeworm, measly tapeworm Parasitology The pork tapeworm, contracted from undercooked or measly pork–pork infected with larval forms of T solium, which can grow 0.9-1.8 m long in the intestine Epidemiology Self-infected by ingesting eggs from own hands after scratching or wiping his/her anus; eggs hatch in GI tract; larvae migrate through tissues and encyst Clinical Larvae that migrate to the brain and encyst–formally, cysticercosis–and cause seizures and other neurologic problems

Tae·ni·a so·li·um

(tē'nē-ă sōl'ē-ŭm)
The pork, armed, or solitary tapeworm of humans, acquired by eating insufficiently cooked pork infected with Cysticercus cellulosae; hatching of ova within the human intestine may result in establishment of cysticerci in human tissues, resulting in cysticercosis.
Enlarge picture
TAENIA SOLIUM: (Orig. mag. ×5)

Taenia solium

A species whose larvae live in hogs; its scolex possesses a row of hooks about the rostellum. The adult worm lives in the small intestine of humans, who acquire it by eating insufficiently cooked pork. Adult worms may take up residence in the intestine, depriving the host of food. Larval forms of T. solium may encyst in the brain, resulting in seizures. In some underdeveloped nations the onset of seizures in adulthood is presumed to be the result of neurocysticercosis until proved otherwise. The infection is treated with niclosamide or praziquantel.
Synonym: armed tapeworm; pork tapeworm See: illustration
See also: Taenia

Taenia

a genus of cyclophyllidean tapeworms of the family Taeniidae. The adult tapeworm inhabits the intestine of carnivores, the larval stage (metacestode) invades the tissues of a variety of animals, in some cases humans. They cause some economic loss due to condemnation of offal, but their greatest importance is their zoogenetic potential, and the preoccupation of humans with the danger of becoming infected.
Tapeworms and their hosts are listed below, but species whose intermediate hosts are unknown are: T. bubesi (lion), T. crocutae (spotted hyena), T. erythraea (black-backed jackal), T. gongamai and T. hlosei (lion and cheetah), T. lycaontis (hunting dog), T. regis (lion).

Taenia brauni
adult tapeworms in dogs and jackals and the larval stage (coenurus) in rats, mice and porcupines. It is probably a subspecies of T. serialis.
Taenia crassiceps
adult tapeworms in foxes and coyotes, the larval stage (cysticercus) in rodents.
Taenia hydatigena
tapeworms in small intestine of dogs, wolves and wild Carnivora, and the larval stage, Cysticercus tenuicollis, found in the sheep and other ruminants, and in pigs and occasionally primates.
Taenia hyenae
tapeworms are in hyenas and the cysticerci in antelopes.
Taenia krabbei
adult tapeworms are found in the dog and in wild carnivores and the larval cestode, Cysticercus tarandi, in the muscles of wild ruminants, especially deer.
Taenia laticollis
tapeworms found in carnivores and larval forms in rodents. Possibly a synonym for T. pisiformis.
Taenia macrocystis
adult tapeworms in lynx and coyote, and the intermediate stage in snowshoe lagomorphs.
Taenia martis
the adult tapeworms in the marten and the cysticercus in the vole.
Taenia multiceps (syn. Multiceps multiceps)
the adult tapeworms are found in the dog and wild canids, the larvae, Coenurus cerebralis, in the brain and spinal cord of sheep and goat.
Taenia mustelae
adult tapeworms in martens, weasels, otters, skunks, badgers and larval stages in voles and other rodents.
Taenia omissa
adult tapeworms in the cougar and larvae in deer.
Taenia ovis
adult tapeworms are found in dogs and wild carnivores and the larval stage, Cysticercus ovis, in the skeletal and cardiac muscles of sheep and goats.
Taenia parva
adult tapeworms in genets, larval stage in rodents.
Taenia pisiformis
adult tapeworms found in small intestine of dog, fox, some wild carnivores, and very rarely in cats. The metacestode stage (Cysticercus pisiformis) found in lagomorphs, in the liver and peritoneal cavity.
Taenia polyacantha
adults are in the intestine of foxes and the metacestodes in microtine rodents.
Taenia rileyi
adult tapeworms found in lynx, larvae in rodents.
Taenia saginata
adult tapeworms are intestinal parasites of humans, and the metacestode (Cysticercus bovis) in cattle and some wild ruminants.
Taenia serialis
the adult tapeworm is found in dogs and foxes and the metacestode, Coenurus serialis, in the subcutaneous and intramuscular tissues of lagomorphs.
Taenia serrata
see T. pisiformis (above).
Taenia solium
the adults are found in the small intestine of humans and some apes, the metacestode (Cysticercus cellulosae) in the skeletal and cardiac muscle of pigs and in the brain of humans.
Taenia taeniaeformis
the adult is found in the small intestine of cats and other related carnivores and the metacestode (Cysticercus fasciolaris) in the livers of rodents.
Taenia twitchelli
adult tapeworms found in wolverines, larvae in lungs and pleural cavity of porcupines.