Radiological manifestations of lung echinococcosis in children.

Echinococcosis of the lung should always be kept in mind when evaluating masses seen in the chest radiograms of children, since the disease is not a rarity. The radiological signs and its differential diagnosis are considered, emphasizing the possibility of the masking of a hydatid cyst by a superimposed pneumonia. The importance of verifying the presence of echinococcosis before deciding on puncture of the lung is stressed.