Un lobo polmonare iperlucente.

The paper describes the case of a 7-year-old female child with a history of chronic cough following an acute res- piratory infection and unilateral hyperlucent lung on chest radiograph. The diagnosis was Swyer-James- MacLeod syndrome, based on characteristic findings on chest TC. Swyer-James-MacLeod syndrome is a post- infectious form of bronchiolitis obliterans that damages the lung during early childhood. Affected patients fre- quently have a history of recurrent pulmonary infection and present with nonspecific respiratory symptoms. The diagnosis is made with characteristic radiographic find- ings such as asymmetric hyperlucency of the lung or lobe, reduction of parenchimal vascularity and air-trapping of the affected parenchyma. The differential diagnosis often requires bronchoscopy and angio-TC or lung scintigra- phy is necessary in some cases. The therapy is based on management of lung infections and bronchial obstruction. The prognosis is generally good.