Abstract
This is the second paper of the total three which deal with radiologic-pathologic correlation of diffuse pulmonary diseases. The first paper described normal roentgen anatomy of the lung and the present one will show radiologic features of pathologic lesions included in lung specimens. Multilobular infiltrative shadow was seen when air space in filled with exudates or transudates. Air bronchogram was always seen in such condition. Thickening of vascular shadows was due to perivascular infiltration of tumors or granulomas. Line shadow was due to thickening of the lobular septa. Ground glass like shadow was seen in fibrosis of alveolar septa. Centrilobular nodular shadow was seen in bronchopneumonia, tuberculosis and pneumoconiosis. Reticular or ring shadow was correlated with honeycomb lung, bullae and cystic ectasis of bronchi. Decrease of radiopacity of lung field with indistinct margin was characteristic to pulmonary emphysema.
