Multiple and bilaterally pulmonary hydatid cystic present as metastas

Hydatid cyst is a parasitic infections of the humans that caused by echinococcus infection. This infection is considerable problem of public health. The most common locations in human body of a hydatid cyst are the liver (75%) and the lung tissue (15%) in the review of medical literature there was a few reports from bilaterally pulmonary hydatidosis which clinically mimics metastatic malignant tumors at initial clinical finding. Because of unusual presentation, the diagnosis with clinical presentations and CT-scan and CXR may easily be missed. For of this missed diagnosis problem, multiple and bilaterally hydatid cyst of lung should be in difrienciated diagnosis of others pulmonary diseases.