Hydatid cyst of the liver causing inferior vena caval obstruction.

Hydatid disease (cystic echinococcosis) is a zoonotic infection caused by larval forms of the tapeworm Echinococcus granulosus. Most common site for cysts is liver and hepatic hydatidosis has a diverse clinical spectrum. Mostly they remain asymptomatic and uncomplicated. Here we report a case of a 50 yr old farmer admitted for renal disease, who was incidentally found to have inferior vena caval obstruction. Ultrasound abdomen and CT abdomen were done and a 10 x 7 cms hepatic hydatid cyst compressing the vena cava was found.