Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior chest radiograph of ___ the lung volumes have decreased . Bibasilar atelectasis with presumed bronchovascular crowding noted . There is no pneumothorax or pleural effusion . The mediastinal and cardiac silhouettes are stable . A calcified right hilar lymph node and right lower lobe calcified nodule are compatible with prior granulomatous disease . There are degenerative changes throughout the lower thoracic spine .
    OUTPUT:
    
Bibasilar atelectasis with bronchovascular crowding . No convincing signs of pneumonia .