Giant intrathoracic extrapulmonary hydatid cyst manifested as unilateral pectus carinatum.

Liver and lung are the most common sites of hydatid disease, but it can also be seen elsewhere in the body. Extrapulmonary intrathoracic location of the disease is rare. This case of giant intrathoracic extrapulmonary hydatid cyst manifested as unilateral pectus carinatum serves to illustrate that hydatid disease can produce various symptoms and that it may also exist in locations apart from lung and liver.