The intermediate host is represented by hares and rabbits, in which are found the mesacestoide ( the larval stage ) known as cysticercus pisiformis.
12.
The infective larave, cysticercus, which has a fluid-filled bladder 0.5 to 1.5 cm in length and an invaginated scolex.
13.
The ones found in the liver form these bladders that are specifically called " Cysticercus pisiformis " for " T . pisiformis ".
14.
When the sheep viscera is scavenged and the scavenger ingests the cysticercus, the protoscolex attaches to the small intestinal wall and the worm begins to form proglottids.
15.
Once they reach organs such as the skeletal muscles, liver or lungs, the larvae then develop into a cyst, which then becomes a fluid-filled cysticercus.
16.
In 1784, Goeze perceived the similarities between the heads of tapeworms found in human intestinal tract and the invaginated heads of " Cysticercus cellulosae " in pigs.
17.
The cysticercus, the larval form, travels and persists in the liver for 18 30 days, then burrows out into the peritoneal cavity and attaches to the viscera.
18.
This cysticercus will stay in the liver for about two to four weeks, then move to the peritoneal cavity where it will wait for the definitive host to eat the rabbit.
19.
The larval stage is often referred to as " Cysticercus pisiformis " and is found on the livers and peritoneal cavities of the intermediate hosts . " T . pisiformis " can be found worldwide.
20.
Parasites are also a significant cause of cancer in animals . " Cysticercus fasciolaris ", the larval form of the common tapeworm of the cat, " Taenia taeniaformis ", causes cancer in rats . " Spirocerca lupi " is associated with esophageal cancer in dogs, at least within the southern United States.
