Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest were reviewed . Right breast mass , rather than lower lobe pneumonia , is probably responsible for added radiodensity to the right chest laterally , since no corresponding pulmonary abnormality is seen on the lateral view . Apparent enlargement of the cardiomediastinal and hilar contours is due at least in part to positioning . A 22 mm wide oval opacity projecting over the right tracheobronchial angle is probably a dilated azygos vein . There is no pleural effusion or pneumothorax . The lungs are well expanded without focal consolidation . Gaseous distension of colonic loops in the left upper quadrant and mid abdomen are noted .
    OUTPUT:
    
Lungs probably clear .