Cystic hydatidosis caused by echinococcus granulosis, dogs are the definitive hosts and sheep is the main intermediate host. In India where there are most of people residing in villages, sheep and dog are main pet animals of peoples. The liver is the primary site followed by the lung.1 Typically the larvae that pass through or bypass the liver, are trapped in pulmonary arterial capillaries. The entrapped larvae developed into hydatid cyst.