An intrahepatic cavoportal collateral pathway due to a liver hydatid cyst obstructing the inferior vena cava.

Congenital or acquired obstruction of the inferior vena cava may lead to the development of collateral pathways with tributary vein to portal system. We present a patient with intrahepatic cavoportal collateral pathway due to hepatic hydatid cyst.

[Extrahepatic and extrapulmonary hydatidosis].

Background: Cystic echinococcosis is a zoonosis caused by larvae of the parasite Echinococcus that is endemic in many countries of the Mediterranean area. It can affect any organ, with the most common sites being liver (70%) and lung (20%). Splenic hydatid disease, despite being rare, is the third most common location.