Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest demonstrates low lung volumes accentuating mildly prominent cardiac silhouette and bronchovascular markings . The thoracic aorta is mildly tortuous . Despite low lung volumes , there is increased hilar vascular congestion and pulmonary edema . A trace left pleural effusion may be present . A rounded opacity in the right lung base is compatible with known mass in the right lower lobe , better seen on prior CT dated ___ .
    OUTPUT:
    
1 . Low lung volumes and increased pulmonary edema . 2 . Right lower lobe pulmonary mass .