Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low with crowding of bronchovascular markings . There is subsegmental atelectasis of the bilateral lung bases and left mid lung . There is no consolidation or overt pulmonary edema . The cardiomediastinal and hilar silhouettes remain unchanged . There is atherosclerotic calcification of the thoracic aorta . There is no pleural effusion or pneumothorax . There are degenerative changes of the bilateral glenohumeral joints .
    OUTPUT:
    
Subsegmental atelectasis of the bilateral lung bases and left mid lung . No consolidation or overt pulmonary edema . This preliminary report was reviewed with Dr . ___ , ___ radiologist .