Any cyst-like structure.
Cyst-like, usually fluid-filled structure especially that which forms around the dog tapeworm Echinococcus granulosus.
A bladderlike cyst formed in various human tissues following the growth of the larval stage of an Echinococcus tapeworm. E. granulosus produces a single large fluid-filled cyst, called a unilocular hydatid, which gives rise internally to smaller daughter cysts. The entire hydatid is bound by a fibrous capsule. E multilocularis forms aggregates of many smaller cysts with a jellylike matrix, called an alveolar hydatid, and enlarges by budding off external daughter cysts. Alveolar hydatids are not delimited by fibrous capsules and produce malignant tumors, which invade and destroy human tissues.
A cyst produced by the growth of immature forms of a tapeworm.
A cyst formed in the tissues, especially the liver, from the development of the larval stage of the dog tapeworm, Echinococcus granulosus. . The cyst develops slowly, forming a hollow bladder from the inner surface of which hollow brood capsules are formed. These may be attached to the mother cyst by slender stalks or may fall free into the fluid-filled cavity of the mother cyst. Scolices form on the inner surface of the older brood capsules. Older cysts have a granular deposit of brood capsules and scolices called hydatid sand. Hydatids may grow for years, sometimes to an enormous size, lbendazole, mebendazole, and praziquantel have been used to treat the disease. The cyst should be removed surgically or percutaneously drained.
A cyst typically develops in the liver or lungs as a result of the growth of the larval stage of the dog tapeworm. This tapeworm larva enters the body through the consumption of contaminated crockery used by an infested dog or by engaging in the habit of kissing a pet dog.