alveolar hydatid cyst

al·ve·o·lar hy·da·tid cyst

a hydatid cyst of a multiloculate type, usually in the liver, caused by Echinococcus multilocularis, adult forms of which are found in foxes; larvae (alveolar hydatid) are found chiefly in voles and lemmings, but also among humans such as trappers and others who handle pelts of infected foxes and other carnivores; growth is by exogenous budding and is not limited by an outer laminated membrane as in the hydatid cyst from E. granulosus; necrosis, cavitation, contiguous spread, and death usually ensue.
References in periodicals archive ?
To the Editor: In 2009, an alveolar hydatid cyst, the intermediate stage of the cestode Echinococcus multilocularis, was detected in the liver of a dog from Quesnel, British Columbia (BC), Canada (1), 600 km west of the nearest known record of this parasite in central North America (Figure).
Alveolar hydatid cyst material was surgically excised from the dog, frozen, and shipped to the Western College of Veterinary Medicine in Saskatoon, Saskatchewan.
3%) of 283 deer mice (Peromyscus maniculatus) trapped in periurban areas of Edmonton were positive for alveolar hydatid cysts (8), and E.