What is malignant hydatid disease -
Echinococcus multilocularis Hydatid disease: Liver is the common organ affected (98% of cases). The disease may resemble a slowly growing carcinomaand may cause symptoms of intrahepatic poal hypeension. Hepatomegaly and hypeension. Cyst appears as solid, film mass with irregular outer layer and has an ability to migrate rapidly to other organs so that it mimics a malignant tumor Man is an accidental intermediate host. Definitive agent- Foxes and wolves (and also dogs and cats). Intermediate hosts- Small wild rodents like squirrels, voles, mice, etc. . This disease is found in Russia, Kazakhstan, china etc.
Malignant changes into hydatid cyst
Infection with E. multilocularis
Hydatid disease in immunocompromised host
Caused by Echino.granulosus
Parasitology Pa 2 (Helminthology)