alveolar hydatid cyst
(PLATYHELMINTHES: Cestoda)
A larval form of Echinococcus multilocularis comprised of many compartments containing many protoscolices that infiltrate body tissues.

Online Dictionary of Invertebrate Zoology. . 2005.

Look at other dictionaries:

  • alveolar hydatid cyst — a hydatid cyst with multiple loculi (small irregular cavities) that may contain scolices but generally little fluid; it is formed by larvae of Echinococcus multilocularis and tends to enlarge by budding since it has a poorly developed hyaline… …   Medical dictionary

  • hydatid cyst — a cyst formed during the larval stage of tapeworms of species Echinococcus; it contains daughter cysts that contain many scoleces. There are two types, the alveolar or multilocular hydatid cyst and the unilocular hydatid cyst. Called also… …   Medical dictionary

  • Alveolar hydatid disease (AHD) — 1. A parasitic disease caused by the larval stage of a microscopic tapeworm Echinococcus multilocularis. AHD is found worldwide, mostly in northern latitudes. in central Europe, Russia, China, Central Asia, Japan, and North America. In North… …   Medical dictionary

  • multilocular hydatid cyst — see alveolar hydatid cyst …   Dictionary of invertebrate zoology

  • multilocular hydatid cyst — alveolar hydatid c …   Medical dictionary

  • AHD (alveolar hydatid disease) — 1. A parasitic disease caused by the larval stage of a microscopic tapeworm Echinococcus multilocularis. AHD is found worldwide, mostly in northern latitudes. in central Europe, Russia, China, Central Asia, Japan, and North America. In North… …   Medical dictionary

  • Disease, alveolar hydatid (AHD) — A parasitic disease caused by the larval stage of a microscopic tapeworm Echinococcus multilocularis. AHD is found worldwide, mostly in northern latitudes. in central Europe, Russia, China, Central Asia, Japan, and North America. In North America …   Medical dictionary

  • Cyst — A closed sac or capsule, usually filled with fluid or semisolid material. * * * 1. A bladder. 2. An abnormal sac containing gas, fluid, or a semisolid material, with a membranous lining. SEE ALSO: pseudocyst. [G. kystis, bladder] adventitious c.… …   Medical dictionary

  • hydatid — 1. SYN: h. cyst. 2. A vesicular structure resembling an Echinococcus cyst. [G. hydatis, a drop of water, a hyatid] Morgagni h. SYN: vesicular appendages of epoophoron, under appendage. nonpedunculated h. SYN: appendix of …   Medical dictionary

  • hydatid — n. a bladder like 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 unilocular hydatid, which gives rise internally to… …   The new mediacal dictionary

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