<unk>  is caused by the larval stage of E. mulitilocularis, a species of flatworm found in the Northern Hemisphere. Humans make poor intermediate hosts for the worm, as they play no role in their life cycle. However, when exposed the worms will still infect them. A major risk factor is when their domesticated dogs and cats eat wild, infected (typically arvicolid) rodents. Their feces then will contain the worms' eggs, which have fully developed larval worms inside. Humans become infected after eating food or water contaminated by embryonated eggs, or by handling an infected host like dogs and cats or by skinning infected foxes.
Alveolar hydatid disease
Echinococcosis
Pneumocystosis
Cryptococcosis
Amoebic liver abscess
Pyogenic liver abscess
Cholangiosarcoma
Liver abscess