BRONCHIOLOALVEOLAR CARCINOMA OF THE LUNG

Bronchioloalveolar carcinoma is a histologically distinct form of pulm onary adenocarcinoma representing an estimated 2-10 % of all primary l ung cancers. Its varied appearances include focal masses, nodular patt erns, and pneumonic and diffuse forms so that bronchioloalveolar carci noma should be considered in the differential diagnosis of solitary or multiple pulmonary nodules and acute or chronic alveolar diseases. In this article we describe the different radiographic manifestations of bronchioloalveolar carcinoma with particular emphasis on CT findings and those signs that may help in identifying the lesion as bronchioloa lveolar carcinoma.