Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes persist . This accentuates the size of the cardiac silhouette which is mild to moderately enlarged , unchanged . The aorta remains tortuous and diffusely calcified . Mediastinal and hilar contours are similar . There is crowding of the bronchovascular structures without overt pulmonary edema . Small bilateral pleural effusions are likely present with persistent focal elevation of the right hemidiaphragm . Streaky opacities in the lung bases may reflect atelectasis though infection can not be excluded . Assessment of the lung apices is somewhat obscured by the patient 's chin and neck soft tissues , but no large pneumothorax is demonstrated . A vascular stent is seen within the region of the left subclavian and axillary vessels . No acute osseous abnormalities demonstrated .
    OUTPUT:
    
Low lung volumes with streaky bibasilar airspace opacities , potentially atelectasis though infection is difficult to exclude . Small bilateral pleural effusions .