Diagnosis is made by serology. Treatment consists of surgical removal of the intact cyst. A more aggressive variant of echinococcosis is produced by Echinococcus multilocularis. The terminal host is the fox and the intermediate hosts are rodents. The cysts are multiple and smaller.
Humans can contract it.
It is found around the Alps, Alaska, Canada, China. It is More aggressive and more difficult to control than Echinococcus granulosus. Fig.151-Echinococcus granulosus Liver with a hydatid cyst containing fluid and daughter cysts. Notice the thick connective tissue capsule which cannot be broken in attempting to remove the cyst. Fig.152-Histological section of the above Section of daughter cysts showing the germinal layer with attached scolices.